Fix typos and grammer problems for actions documentation (#26328)

follow #26317
fix typos and adjust grammer problems.

docs/content/usage/actions/act-runner.en-us.md

@@ -245,7 +245,8 @@ You can find more useful images on [act images](https://github.com/nektos/act/bl
 If you want to run jobs in the host directly, you can change it to `ubuntu-22.04:host` or just `ubuntu-22.04`, the `:host` is optional.
 However, we suggest you to use a special name like `linux_amd64:host` or `windows:host` to avoid misusing it.
 
-After Gitea 1.21 released, you can change labels by modfiying `container.labels` in configuration file (if you don't have a configuration file, please refer to [configuration tutorials](#configuration)), and runner will declare the new labels which you defined in configuration file after executing `./act_runner daemon --config config.yaml`.
+Starting with Gitea 1.21, you can change labels by modifying `container.labels` in the runner configuration file (if you don't have a configuration file, please refer to [configuration tutorials](#configuration)).
+The runner will use these new labels as soon as you restart it, i.e., by calling `./act_runner daemon --config config.yaml`.
 
 ## Running
 
@@ -263,29 +264,31 @@ Since act runner is still in development, it is recommended to check the latest
 
 ## Configuration variable
 
-You can create configuration varibales with user, organization, repository level. And the level of the variable depends on which setting panel you created in.
+You can create configuration variables on the user, organization and repository level.
+The level of the variable depends on where you created it.
 
 ### Naming conventions
 
 The following rules apply to variable names:
 
-- Varibale names can only contain alphanumeric characters (`[a-z]`, `[A-Z]`, `[0-9]`) or underscores (`_`). Spaces are not allowed.
+- Variable names can only contain alphanumeric characters (`[a-z]`, `[A-Z]`, `[0-9]`) or underscores (`_`). Spaces are not allowed.
 
-- Varibale names must not start with the `GITHUB_` and `GITEA_` prefix.
+- Variable names must not start with the `GITHUB_` and `GITEA_` prefix.
 
-- Varibale names must not start with a number.
+- Variable names must not start with a number.
 
-- Varibale names are not case-sensitive.
+- Variable names are case-insensitive.
 
-- Varibale names must be unique at the level they are created at.
+- Variable names must be unique at the level they are created at.
 
-- Varibale names must not be 'CI'.
+- Variable names must not be `CI`.
 
-### Using varibales
+### Using variable
 
-After creating configuration varibales, they will be automatically filled in the `vars` context. They are available to you with expression like `{{ vars.VARIABLE_NAME }}` in workflow.
+After creating configuration variables, they will be automatically filled in the `vars` context.
+They can be accessed through expressions like `{{ vars.VARIABLE_NAME }}` in the workflow.
 
 ### Precedence
 
-If a variable with the same name exists at multiple levels, the variable at the lowest level takes precedence(the level of organization and user is higher than repository's).
-For example, if an organization-level variable has the same name as a repository-level variable, then the repository-level variable takes precedence.
+If a variable with the same name exists at multiple levels, the variable at the lowest level takes precedence:
+A repository variable will always be chosen over an organization/user variable.

docs/content/usage/actions/act-runner.zh-cn.md

@@ -241,7 +241,7 @@ Runner的标签用于确定Runner可以运行哪些Job以及如何运行它们
 如果您想直接在主机上运行Job，您可以将其更改为`ubuntu-22.04:host`或仅`ubuntu-22.04`，`:host`是可选的。
 然而，我们建议您使用类似`linux_amd64:host`或`windows:host`的特殊名称，以避免误用。
 
-Gitea 1.21 发布后，您可以通过修改配置文件中的 `container.labels` 来更改标签（如果没有配置文件，请参考 [配置教程](#配置)），执行 `./act_runner daemon --config config.yaml` 命令后，它会向 Gitea 声明您在配置文件中定义的新标签。
+从 Gitea 1.21 开始，您可以通过修改 runner 的配置文件中的 `container.labels` 来更改标签（如果没有配置文件，请参考 [配置教程](#配置)），通过执行 `./act_runner daemon --config config.yaml` 命令重启 runner 之后，这些新定义的标签就会生效。
 
 ## 运行
 
@@ -259,7 +259,7 @@ Runner将从Gitea实例获取Job并自动运行它们。
 
 ## 变量
 
-您可以创建用户、组织和仓库级别的变量。变量的级别是取决于你在哪个设置面板中创建它们的。
+您可以创建用户、组织和仓库级别的变量。变量的级别取决于创建它的位置。
 
 ### 命名规则
 
@@ -283,5 +283,5 @@ Runner将从Gitea实例获取Job并自动运行它们。
 
 ### 优先级
 
-如果同名变量存在于多个级别，则级别最低的变量优先（组织和用户的级别高于仓库）。
-比如，如果组织级变量与仓库级变量同名，则仓库变量优先。
+如果同名变量存在于多个级别，则级别最低的变量优先。
+仓库级别的变量总是比组织或者用户级别的变量优先被选中。