*: test renaming deploy/configure/secure/monitor files (#1322)

* sql: update tidb slow log operation * update log * update log * modify the translation: requirements vs recommendations * improve the translation * dm: add description for task overview monitor * dm: add description for instances' monitor * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * dm: address comments * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * v2.1/tools, v2.1/tools: update TiDB-Binlog (#1245) v2.1/tools: update TiDB-Binlog * fix incorrect IP address parsing and other inline code formatting * *: move overview and features (#1253) Via: pingcap/docs#1045 * TOC: update the quickstart link (#1255) * sql: remove redundant content in privilege && user, tiny clean up * Apply suggestions from code review Co-Authored-By: dcalvin <[email protected]> * Apply suggestions from code review Co-Authored-By: dcalvin <[email protected]> * Update tools/dm/monitor.md Co-Authored-By: csuzhangxc <[email protected]> * dm: address comments * add digest declare * update eg * add stats eg * update eg * address comment and add more field * TOC: covert docs-cn to DITA TOC (#1242) * TOC: covert docs-cn to DITA TOC * TOC: update wording * TOC: refine wording * toc: update description and a link * toc: update wording * toc: update a file name * toc: remove the K8s link * toc: fix a link about incremental replication * toc: update a blog post link to Chinese version * toc: fix a link and update wording * toc: update key features and overview * toc: update About TiDB * add declare for v2.1.8 * address comment * change the link of back-restore in tidb-binlog document * address comment * *: remove doc redundant space * sql/slow_query: add pt-digest-query version * tools: update a lightning download link * address comment * sql, TOC: update doc title (#1262) * benchmark: update the Note format * op-guide: update the Note format * benchmark, op-guide: Update the Note format (#1273) benchmark, op-guide: update the Note format * *: update the Note format * address comment * *: update the Note format * benchmark, v2.1/benchmark: remove an invalid link (#1275) * benchmark: remove an invalid link * v2.1/benchmark: remove an invalid link * update condition (#1265) * Update sql/slow-query.md Co-Authored-By: crazycs520 <[email protected]> * Update sql/slow-query.md Co-Authored-By: crazycs520 <[email protected]> * sql: update the USE command explanation in util document (#1269) * docs-cn #1112 Update the USE command explanation in util document * Update sql/util.md LGTM Co-Authored-By: ericsyh <[email protected]> * Update v1.0/sql/util.md LGTM Co-Authored-By: ericsyh <[email protected]> * Update v2.0/sql/util.md LGTM Co-Authored-By: ericsyh <[email protected]> * Update v2.1/sql/util.md LGTM Co-Authored-By: ericsyh <[email protected]> * update the loader pprof-addr default port (#1256) * tools: clarify meaning of "N/A" (#1267) * releases: correct the TiDB-Ansible version (#1280) * sql: fix some format mistakes (#1277) * Sql: fix some format mistakes * Update sql/slow-query.md Co-Authored-By: IzabelWang <[email protected]> * Update sql/slow-query.md Co-Authored-By: IzabelWang <[email protected]> * Update sql/slow-query.md Co-Authored-By: IzabelWang <[email protected]> * Update op-guide/tidb-config-file.md Co-Authored-By: IzabelWang <[email protected]> * Update sql/slow-query.md Co-Authored-By: IzabelWang <[email protected]> * Remove unnecessary space * Update slow-query.md * Update slow-query.md * sql: update generated columns docs * address comment and add issue link * *: rename how-to get started (#1281) * *: rename how-to get started Related PR: pingcap/docs#1046 * *: fix aliases link path * sql: update content structure and wording (#1259) * TOC: update a doc title (#1285) * tools/lightning: fix a broken link (#1287) * explain for update statement (#1284) * tools, toc: reorganize TiDB Binlog documents (#1264) * reorg the binlog documents * update TOC format * change the pd to file in overview * update the ansible-deployment link * rename the previous version of tidb-binlog to tidb-binlog-local * Make the explaination of pausing and paused more clear * change the order in TOC * uncomment some necessary configs in kafka version * add more explaination of paused and offline in overview * fix the typo * Add the Topic config in Kafka driver * update the gc intro in deployment * remove unnecessary step in deployment * remove the compression in deploy document * remove sql in the file dainer * update the download link in deployment * Time and size limits delete * abandon enable-tolerant config * move the reparo document into binlog folder * update the rapero download link * update drainer_pd to drainer_file * trouble-shooting: update the issue report link (#1289) * trouble-shooting: update the issue report link * Update trouble-shooting.md Co-Authored-By: CaitinChen <[email protected]> * Update trouble-shooting.md Co-Authored-By: CaitinChen <[email protected]> * Update trouble-shooting.md Co-Authored-By: CaitinChen <[email protected]> * tools/binlog: optimize the TiDB-Binlog documents (#1291) * fix some problems with suggestions from Lilian and Calvin * tools/binlog: fix and update format (#1292) * tools/binlog: fix and update format * tools/binlog: update wording * tools/binlog: update a link * Update tools/binlog/upgrade.md Co-Authored-By: lilin90 <[email protected]> * tools: update syncer batch size (#1288) * tools/dm: fix the error in valus from ansible command (#1293) * sql: fix punctuation and format * circle.yml: [WIP] comment publish pdf cmd * TOC, releases: add 2.1.9 release notes (#1298) * TOC, releases: add 2.1.9 release notes PTAL * Update 2.1.9.md * releases: fix format * tools: update loader status addr (#1299) * Add charset check in Syncer precheck (#1300) * Add charset check in Syncer precheck * Update tools/syncer.md Co-Authored-By: ericsyh <[email protected]> * circle.yml: remove IP address (#1301) * *: change "登陆" to “登录” (#1302) * sql: fix format (#1303) * sql: update a comma (#1305) * sql: replace "jeffrey" with "test" (#1309) * op-guide/monitor: update the PD API DOC link (#1311) * Update the link * Update the PD API DOC link * tools: fix the format error in Syncer (#1306) * Fix the format error in Syncer * Update tools/syncer.md Co-Authored-By: ericsyh <[email protected]> * update a link (#1313) * op-guide: add a guide about upgrading to 3.0 (#1258) * Add rolling update TiDB 3.0 guide. * Add rolling update TiDB 3.0 guide. * Apply suggestions from code review Co-Authored-By: superlzs0476 <[email protected]> * Apply suggestions from code review * Apply suggestions from code review Co-Authored-By: liubo <[email protected]> * op-guide: update a note format * op-guide: update wording * op-guide: update format * circle.yml: add a new IP for qiniu (#1315) * sql: fix typo (#1286) * media, tools: update TiDB-Lightning architecture Via: pingcap/docs#1128 * Delete useless instruction (#1308) * TOC, releases: add TiDB 3.0.0 RC1 release notes (#1316) * TOC, releases: add TiDB 3.0.0 RC1 release notes PTAL * Fix format * add new updates * Update TOC.md * Update rn.md * op-guide, toc: fix upgrade wording and update TOC (#1318) * op-guide, tools: fix a link and remove duplicated file (#1319) * *: update version limit for DM/Syncer (#1312) * toc, support: reorganize TOC and update a link (#1320) * toc, support: reorganize TOC and update a link Related PR: #1279 * toc: udpate description * toc: update wording * *: rename how-to deploy/configure/secure/monitor
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diff --git a/FAQ.md b/FAQ.md
@@ -118,7 +118,7 @@ TiDB 的 sql_mode 与 MySQL 的 sql_mode 设置方法有一些差别，TiDB 不
 
 #### 1.1.24 TiDB 支持哪些认证协议，过程是怎样的？
 
-这一层跟 MySQL 一样，走的 SASL 认证协议，用于用户登陆认证，对密码的处理流程。
+这一层跟 MySQL 一样，走的 SASL 认证协议，用于用户登录认证，对密码的处理流程。
 
 客户端连接 TiDB 的时候，走的是 challenge-response（挑战-应答）的认证模式，过程如下：
 
@@ -349,9 +349,9 @@ Binary 不是我们建议的安装方式，对升级支持也不友好，建议
 | 滚动升级除 PD 外模块 | ansible-playbook rolling\_update.yml --skip-tags=pd |
 | 滚动升级监控组件 | ansible-playbook rolling\_update\_monitor.yml |
 
-#### 3.1.2 TiDB 如何登陆？
+#### 3.1.2 TiDB 如何登录？
 
-和 MySQL 登陆方式一样，可以按照下面例子进行登陆。
+和 MySQL 登录方式一样，可以按照下面例子进行登录。
 
 `mysql -h 127.0.0.1 -uroot -P4000`
 
@@ -697,9 +697,9 @@ loader 的 -t 参数可以根据 TiKV 的实例个数以及负载进行评估调
 
 TiDB 支持绝大多数 MySQL 语法，一般不需要修改代码。
 
-#### 4.1.4 不小心把 MySQL 的 user 表导入到 TiDB 了，或者忘记密码，无法登陆，如何处理？
+#### 4.1.4 不小心把 MySQL 的 user 表导入到 TiDB 了，或者忘记密码，无法登录，如何处理？
 
-重启 TiDB 服务，配置文件中增加 `-skip-grant-table=true` 参数，无密码登陆集群后，可以根据情况重建用户，或者重建 mysql.user 表，具体表结构搜索官网。
+重启 TiDB 服务，配置文件中增加 `-skip-grant-table=true` 参数，无密码登录集群后，可以根据情况重建用户，或者重建 mysql.user 表，具体表结构搜索官网。
 
 #### 4.1.5 在 Loader 运行的过程中，TiDB 可以对外提供服务吗？
 该操作进行逻辑插入，TiDB 仍可对外提供服务，但不要执行相关 DDL 操作。

diff --git a/TOC.md b/TOC.md
@@ -1,4 +1,4 @@
-# TiDB 中文技术文档
+# TiDB 中文用户文档
 
 ## 目录
 
@@ -11,36 +11,31 @@
 + 操作指南
   + 快速上手
     + 创建本地集群
-      - [使用 Docker Compose](op-guide/docker-compose.md)
-    - [SQL 基本操作](try-tidb.md)
-    - [读取历史数据](op-guide/history-read.md)
-  - 部署
-    - [软硬件环境需求](op-guide/recommendation.md)
+      - [使用 Docker Compose](dev/how-to/get-started/local-cluster/install-from-docker-compose.md)
+    - [SQL 基本操作](dev/how-to/get-started/explore-sql.md)
+    - [读取历史数据](dev/how-to/get-started/read-historical-data.md)
+  + 部署
+    - [软硬件环境需求](dev/how-to/deploy/hardware-recommendations.md)
     + 集群部署方式
-      - [使用 Ansible 部署（推荐）](op-guide/ansible-deployment.md)
-      - [使用 Ansible 离线部署](op-guide/offline-ansible-deployment.md)
-      - [使用 Docker 部署](op-guide/docker-deployment.md)
+      - [使用 Ansible 部署（推荐）](dev/how-to/deploy/orchestrated/ansible.md)
+      - [使用 Ansible 离线部署](dev/how-to/deploy/orchestrated/offline-ansible.md)
+      - [使用 Docker 部署](dev/how-to/deploy/orchestrated/docker.md)
     + 跨地域冗余
-      - [跨数据中心部署方案](op-guide/cross-dc-deployment.md)
-      - [配置集群拓扑](op-guide/location-awareness.md)
-    - [TiSpark 快速上手](tispark/tispark-quick-start-guide.md)
-    - [使用 Ansible 部署 DM 集群](tools/dm/deployment.md)
+      - [跨数据中心部署方案](dev/how-to/deploy/geographic-redundancy/overview.md)
+      - [配置集群拓扑](dev/how-to/deploy/geographic-redundancy/location-awareness.md)
+    - [TiSpark 快速上手](dev/how-to/deploy/tispark.md)
+    - [使用 Ansible 部署 DM 集群](dev/how-to/deploy/data-migration-with-ansible.md)
+  + 配置
+    - [时区](dev/how-to/configure/time-zone.md)
+    - [内存控制](dev/how-to/configure/memory-control.md)
   + 安全
-    - [与 MySQL 的安全特性差异](sql/security-compatibility.md)
-    - [TiDB 数据库权限管理](sql/privilege.md)
-    - [TiDB 用户账户管理](sql/user-account-management.md)
     + 安全传输层协议 (TLS)
-      - [为 MySQL 客户端启用 TLS](sql/encrypted-connections.md)
-      - [为 TiDB 组件启用 TLS](op-guide/security.md)
-    - [生成自签名证书](op-guide/generate-self-signed-certificates.md)
+      - [为 MySQL 客户端开启 TLS](dev/how-to/secure/enable-tls-clients.md)
+      - [为 TiDB 组件间开启 TLS](dev/how-to/secure/enable-tls-between-components.md)
+    - [生成自签名证书](dev/how-to/secure/generate-self-signed-certificates.md)
   + 监控
-    - [概述](op-guide/monitor-overview.md)
-    - [监控 TiDB 集群](op-guide/monitor.md)
-    + 重要监控指标详解
-      - [Overview](op-guide/dashboard-overview-info.md)
-      - [TiDB](op-guide/tidb-dashboard-info.md)
-      - [PD](op-guide/dashboard-pd-info.md)
-      - [TiKV](op-guide/dashboard-tikv-info.md)
+    - [概述](dev/how-to/monitor/overview.md)
+    - [监控 TiDB 集群](dev/how-to/monitor/monitor-a-cluster.md)
   + 迁移
     - [概述](op-guide/migration-overview.md)
     + 从 MySQL 迁移
@@ -52,36 +47,30 @@
     + 备份与恢复
       - [全量备份](op-guide/backup-restore.md)
       - [增量备份](tools/tidb-binlog-cluster.md)
-    + 扩容缩容
-      - [集群扩容缩容方案](op-guide/horizontal-scale.md)
-      - [使用 Ansible 扩容缩容](op-guide/ansible-deployment-scale.md)
     - [定位慢查询](sql/slow-query.md)
-    + 升级
-      - [升级至 TiDB 2.1](op-guide/tidb-v2.1-upgrade-guide.md)
-      - [升级 Data Migration](tools/dm/dm-upgrade.md)
-      - [使用 Ansible 滚动升级](op-guide/ansible-deployment-rolling-update.md)
-  - 故障诊断
-    - [错误码](sql/error.md)
+  + 扩容缩容
+    - [使用 Ansible 扩容缩容](op-guide/ansible-deployment-scale.md)
+    - [集群扩容缩容方案](op-guide/horizontal-scale.md)
+  + 升级
+    - [升级至 TiDB 3.0](op-guide/tidb-v3.0-upgrade-guide.md)
+    - [升级至 TiDB 2.1](op-guide/tidb-v2.1-upgrade-guide.md)
+    - [使用 Ansible 滚动升级](op-guide/ansible-deployment-rolling-update.md)
+    - [升级 Data Migration](tools/dm/dm-upgrade.md)
+  + 故障诊断
     - [集群配置诊断](trouble-shooting.md)
     - [Data Migration 故障诊断](tools/dm/troubleshooting.md)
     - [TiDB-Lightning 故障诊断](tools/lightning/errors.md)
-    - [支持渠道](support.md)
-    - [反馈问题](report-issue.md)
-  + [贡献](contribute.md)
-    - [贡献代码](contribute.md#成为-tidb-的贡献者)
-    - [改进文档](contribute.md#改进文档)
-+ 参考资源
++ 参考手册
+  + [与 MySQL 兼容性对比](sql/mysql-compatibility.md)
   + SQL
-    - [支持的连接器和 API](sql/connection-and-APIs.md)
-    - [与 MySQL 兼容性对比](sql/mysql-compatibility.md)
-    + SQL 语句
-      - [数据定义语句 (DDL)](sql/ddl.md)
-      - [数据操作语句 (DML)](sql/dml.md)
-      - [事务语句](sql/transaction.md)
-      - [数据库管理语句](sql/admin.md)
-      - [Prepared SQL 语句语法](sql/prepare.md)
-      - [实用工具语句](sql/util.md)
-      - [TiDB SQL 语法图](https://pingcap.github.io/sqlgram/)
+    - [TiDB SQL 语法图](https://pingcap.github.io/sqlgram/)
+    + SQL 语言结构
+      - [字面值](sql/literal-values.md)
+      - [Schema 对象名](sql/schema-object-names.md)
+      - [关键字和保留字](sql/keywords-and-reserved-words.md)
+      - [用户自定义变量](sql/user-defined-variables.md)
+      - [表达式语法](sql/expression-syntax.md)
+      - [注释语法](sql/comment-syntax.md)
     + 数据类型
       - [数值类型](sql/datatype.md#数值类型)
       - [日期和时间类型](sql/datatype.md#日期时间类型)
@@ -90,7 +79,6 @@
       - [枚举类型](sql/datatype.md#枚举类型)
       - [集合类型](sql/datatype.md#集合类型)
       - [数据类型默认值](sql/datatype.md#数据类型的默认值)
-    - [约束](sql/constraints.md)
     + 函数与操作符
       - [函数与操作符概述](sql/functions-and-operators-reference.md)
       - [表达式求值的类型转换](sql/type-conversion-in-expression-evaluation.md)
@@ -107,48 +95,60 @@
       - [GROUP BY 聚合函数](sql/aggregate-group-by-functions.md)
       - [其它函数](sql/miscellaneous-functions.md)
       - [精度数学](sql/precision-math.md)
-    + SQL 语言结构
-      - [字面值](sql/literal-values.md)
-      - [Schema 对象名](sql/schema-object-names.md)
-      - [关键字和保留字](sql/keywords-and-reserved-words.md)
-      - [用户自定义变量](sql/user-defined-variables.md)
-      - [表达式语法](sql/expression-syntax.md)
-      - [注释语法](sql/comment-syntax.md)
+    + SQL 语句
+      - [数据定义语句 (DDL)](sql/ddl.md)
+      - [数据操作语句 (DML)](sql/dml.md)
+      - [事务语句](sql/transaction.md)
+      - [数据库管理语句](sql/admin.md)
+      - [Prepared SQL 语句语法](sql/prepare.md)
+      - [实用工具语句](sql/util.md)
+    - [约束](sql/constraints.md)
     - [生成列](sql/generated-columns.md)
-    + 事务
-      - [事务模型](sql/transaction-model.md)
-      - [隔离级别](sql/transaction-isolation.md)
-    + 性能
-      - [SQL 优化流程](sql/sql-optimizer-overview.md)
-      - [基于代价的优化](sql/understanding-the-query-execution-plan.md)
-      - [统计信息概述](sql/statistics.md)
-      - [Optimizer Hints](sql/optimizer-hints.md)
-      - [TiKV 调优](op-guide/tune-tikv.md)
-      - [TiDB 最佳实践](https://pingcap.com/blog-cn/tidb-best-practice/)
-    - [TiDB 系统数据库](sql/system-database.md)
-    - [Information Schema](sql/information-schema.md)
-    - [TiSpark 使用指南](tispark/tispark-user-guide.md)
+    - [字符集](sql/character-set-support.md)
   + 配置
     + tidb-server
       - [MySQL 系统变量](sql/variable.md)
       - [TiDB 特定系统变量](sql/tidb-specific.md)
-      - [时区](sql/time-zone.md)
-      - [字符集](sql/character-set-support.md)
-      - [内存控制](sql/tidb-memory-control.md)
-      - [垃圾回收 (GC)](op-guide/gc.md)
       - [配置参数](op-guide/configuration.md)
     + pd-server
       - [配置参数](op-guide/pd-configuration.md)
     + tikv-server
       - [配置参数](op-guide/tikv-configuration.md)
+  + 监控指标
+    - [Overview 面板](op-guide/dashboard-overview-info.md)
+    - [TiDB 面板](op-guide/tidb-dashboard-info.md)
+    - [PD 面板](op-guide/dashboard-pd-info.md)
+    - [TiKV 面板](op-guide/dashboard-tikv-info.md)
+  + 安全
+    - [与 MySQL 的安全特性差异](sql/security-compatibility.md)
+    - [TiDB 数据库权限管理](sql/privilege.md)
+    - [TiDB 用户账户管理](sql/user-account-management.md)
+  + 事务
+    - [事务模型](sql/transaction-model.md)
+    - [隔离级别](sql/transaction-isolation.md)
+  + 系统数据库
+    - [`mysql`](sql/system-database.md)
+    - [`information_schema`](sql/information-schema.md)
+  - [错误码](sql/error.md)
+  - [支持的连接器和 API](sql/connection-and-APIs.md)
+  - [垃圾回收 (GC)](op-guide/gc.md)
+  + 性能调优
+    - [SQL 优化流程](sql/sql-optimizer-overview.md)
+    - [理解 TiDB 执行计划](sql/understanding-the-query-execution-plan.md)
+    - [统计信息概述](sql/statistics.md)
+    - [Optimizer Hints](sql/optimizer-hints.md)
+    - [TiKV 调优](op-guide/tune-tikv.md)
+    - [TiDB 最佳实践](https://pingcap.com/blog-cn/tidb-best-practice/)
+  + [TiSpark 使用指南](tispark/tispark-user-guide.md)
   + 生态工具
     - [Mydumper](tools/mydumper.md)
     - [Loader](tools/loader.md)
     - [Syncer](tools/syncer.md)
     + Data Migration
-      - [概述](tools/dm/overview.md)
-      - [使用限制](tools/dm/overview.md#使用限制)
-      + [部署使用](tools/dm/practice.md)
+      + [概述](tools/dm/overview.md)
+        - [DM 架构](tools/dm/overview.md#dm-架构)
+        - [同步功能介绍](tools/dm/overview.md#同步功能介绍)
+        - [使用限制](tools/dm/overview.md#使用限制)
       + 核心特性
         - [Table Routing](tools/dm/data-synchronization-features.md#table-routing)
         - [Black & White Lists](tools/dm/data-synchronization-features.md#black-white-table-lists)
@@ -162,6 +162,7 @@
       + 使用场景
         - [简单的从库同步场景](tools/dm/simple-synchronization-scenario.md)
         - [分库分表合并场景](tools/dm/shard-merge-scenario.md)
+      + [部署使用](tools/dm/practice.md)
       + 配置
         - [概述](tools/dm/dm-configuration-file-overview.md)
         - [任务配置](tools/dm/task-configuration-file-intro.md)
@@ -175,57 +176,35 @@
       - [表库过滤](tools/lightning/filter.md)
       - [CSV 支持](tools/lightning/csv.md)
       - [监控告警](tools/lightning/monitor.md)
-    - [TiDB-Binlog](tools/tidb-binlog-cluster.md)
+    + TiDB-Binlog
+      - [概述](tools/binlog/overview.md)
+      - [部署使用](tools/binlog/deploy.md)
+      - [监控告警](tools/binlog/monitor.md)
+      - [运维管理](tools/binlog/operation.md)
+      - [版本升级](tools/binlog/upgrade.md)
     - [PD Control](tools/pd-control.md)
     - [PD Recover](tools/pd-recover.md)
     - [TiKV Control](https://github.com/tikv/tikv/blob/master/docs/tools/tikv-control.md)
     - [TiDB Controller](tools/tidb-controller.md)
     - [工具下载](tools/download.md)
-  - [TiDB 路线图](ROADMAP.md)
-  + 用户案例
-    - [北京银行](http://t.cn/RnY8fGn)
-    - [海航](http://t.cn/REXx0Qe)
-    - [美团点评](http://t.cn/EAFCqhl)
-    - [今日头条](http://t.cn/RnLfEMf)
-    - [转转](http://t.cn/R1MAXEq)
-    - [Mobike](http://t.cn/RT8FbP6)
-    - [小米科技](http://t.cn/Ey2xCDK)
-    - [爱奇艺](http://t.cn/EvErsc1)
-    - [易果生鲜](http://t.cn/RTYVhzH)
-    - [同程旅游（一）](http://t.cn/RmXeNKR)
-    - [同程旅游（二）](http://t.cn/EAmsF08)
-    - [去哪儿](http://t.cn/RTKnsL7)
-    - [火星文化](http://t.cn/EAuvfcs)
-    - [G7](http://t.cn/RQVePoX)
-    - [一面数据](http://t.cn/RT9r5di)
-    - [凤凰网](http://t.cn/RHRQfNT)
-    - [猿辅导](http://t.cn/RTKnKSX)
-    - [Mobikok](http://t.cn/Rm1F6lg)
-    - [二维火](http://t.cn/R8bXM2f)
-    - [客如云](http://t.cn/R1wSEJH)
-    - [Ping++](http://t.cn/RE5xYKn)
-    - [乐视云](http://t.cn/Rnv3IVs)
-    - [零氪科技](http://t.cn/REj7tSv)
-    - [威锐达测控](http://t.cn/R3CrviR)
-    - [盖娅互娱](http://t.cn/RT9r7hx)
-    - [游族网络](http://t.cn/R8k4AWB)
-    - [西山居](http://t.cn/RBP12zj)
-    - [FUNYOURS JAPAN](http://t.cn/Rnoab5D)
-    - [丰巢科技](http://t.cn/EAuvLIv)
-    - [特来电](http://t.cn/RrHzUGW)
-    - [万达网络](http://t.cn/RTKm6ds)
-    - [360金融](http://t.cn/RTKnTev)
-    - [中国电信翼支付](http://t.cn/R3Wd9p3)
-    - [某电信运营商](http://t.cn/RTYWADg)
 + 常见问题 (FAQ)
   - [TiDB FAQ](FAQ.md)
   - [TiDB-Lightning FAQ](tools/lightning/faq.md)
   - [升级 FAQ](op-guide/upgrade-faq.md)
++ 技术支持
+  - [支持渠道](support.md)
+  - [反馈问题](report-issue.md)
++ [贡献](contribute.md)
+  - [贡献代码](contribute.md#成为-tidb-的贡献者)
+  - [改进文档](contribute.md#改进文档)
+- [TiDB 路线图](ROADMAP.md)
 + [版本发布历史](releases/rn.md)
   + v3.0
-    - [3.0.0 Beta.1](releases/3.0.0-beta.1.md)
-    - [3.0 Beta](releases/3.0beta.md)
+    - [3.0.0-rc.1](releases/3.0.0-rc.1.md)
+    - [3.0.0-beta.1](releases/3.0.0-beta.1.md)
+    - [3.0.0-beta](releases/3.0beta.md)
   + v2.1
+    - [2.1.9](releases/2.1.9.md)
     - [2.1.8](releases/2.1.8.md)
     - [2.1.7](releases/2.1.7.md)
     - [2.1.6](releases/2.1.6.md)

diff --git a/benchmark/sysbench-v2.md b/benchmark/sysbench-v2.md
@@ -26,10 +26,7 @@ IDC 机器
 | OS | Linux (CentOS 7.3.1611) |
 | CPU | 40 vCPUs, Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz |
 | RAM | 128GB |
-| DISK | Optane 500GB SSD * 1 |  
-
-Sysbench 测试脚本：
-https://github.com/pingcap/tidb-bench/tree/master/sysbench   
+| DISK | Optane 500GB SSD * 1 |     
 
 ## 测试方案
 

diff --git a/benchmark/sysbench-v4.md b/benchmark/sysbench-v4.md
@@ -90,7 +90,9 @@ block-cache-size = "6GB"
 
 ## 测试过程
 
-> **注意**：此次测试并没有使用如 HAproxy 等负载均衡工具。在 TiDB 单一节点上进行 Sysbench 测试，并把结果相加。负载均衡工具和不同版本参数也会影响性能表现。
+> **注意：**
+>
+> 此次测试并没有使用如 HAproxy 等负载均衡工具。在 TiDB 单一节点上进行 Sysbench 测试，并把结果相加。负载均衡工具和不同版本参数也会影响性能表现。
 
 ### Sysbench 配置
 
@@ -134,10 +136,12 @@ create database sbtest;
 
 假设用户使用的 [Sysbench](https://github.com/akopytov/sysbench/tree/1.0.14) 版本。我们可以通过以下两种方式来修改。
 
-1. 直接下载为 TiDB 修改好的 [oltp_common.lua](https://raw.githubusercontent.com/pingcap/tidb-bench/master/sysbench-patch/oltp_common.lua) 文件，覆盖 `/usr/share/sysbench/oltp_common.lua` 文件。 
+1. 直接下载为 TiDB 修改好的 [oltp_common.lua](https://raw.githubusercontent.com/pingcap/tidb-bench/master/sysbench/sysbench-patch/oltp_common.lua) 文件，覆盖 `/usr/share/sysbench/oltp_common.lua` 文件。 
 2. 将 `/usr/share/sysbench/oltp_common.lua` 的第 [235](https://github.com/akopytov/sysbench/blob/1.0.14/src/lua/oltp_common.lua#L235) 行到第 [240](https://github.com/akopytov/sysbench/blob/1.0.14/src/lua/oltp_common.lua#L240) 行移动到第 198 行以后。
 
-> **注意**：此操作为可选操作，仅节约了数据导入时间。
+> **注意：**
+>
+> 此操作为可选操作，仅节约了数据导入时间。
 
 命令行输入以下命令，开始导入数据，config 文件为上一步中配置的文件：
 

diff --git a/benchmark/sysbench.md b/benchmark/sysbench.md
@@ -10,7 +10,9 @@ draft: true
 
 测试 TiDB 在 OLTP 场景下的性能以及水平扩展能力。
 
-> **注意**: 不同的测试环境可能使测试结果发生改变。
+> **注意：**
+>
+> 不同的测试环境可能使测试结果发生改变。
 
 ## 测试版本、时间、地点
 

diff --git a/benchmark/tpch-v2.md b/benchmark/tpch-v2.md
@@ -9,7 +9,9 @@ category: benchmark
 
 测试 TiDB 在 OLAP 场景下 2.0 和 2.1 版本的性能对比。
 
-> **注意**：不同的测试环境可能使测试结果发生改变。
+> **注意：**
+>
+> 不同的测试环境可能使测试结果发生改变。
 
 ## 测试环境