add netlifycms

src/pages/admin.jsx

@@ -0,0 +1,27 @@
+import React, { Component } from "react";
+import Helmet from "react-helmet";
+
+class AdminPage extends Component {
+  render() {
+    return (
+      <div className="admin">
+        <Helmet>
+          <meta charSet="utf-8" />
+          <meta
+            name="viewport"
+            content="width=device-width, initial-scale=1.0"
+          />
+          <title>Content Manager</title>
+
+          <link
+            rel="stylesheet"
+            href="https://unpkg.com/netlify-cms@~0.4/dist/cms.css"
+          />
+          <script src="https://unpkg.com/netlify-cms@~0.4/dist/cms.js" />
+        </Helmet>
+      </div>
+    );
+  }
+}
+
+export default AdminPage;

static/config.yml

@@ -0,0 +1,19 @@
+backend:
+  name: github
+  repo: kalinchernev/gatsby-jammin # Path to your Github repository
+  branch: master # Branch to update (master by default)
+
+media_folder: "static/img" # Folder where user uploaded files should go
+
+collections: # A list of collections the CMS should be able to edit
+  - name: "post" # Used in routes, ie.: /admin/collections/:slug/edit
+    label: "Post" # Used in the UI, ie.: "New Post"
+    folder: "content" # The path to the folder where the documents are stored
+    sort: "date:desc" # Default is title:asc
+    create: true # Allow users to create new documents in this collection
+    slug: "{{year}}-{{month}}-{{day}}-{{slug}}"
+    fields: # The fields each document in this collection have
+      - {label: "Title", name: "title", widget: "string", tagname: "h1"}
+      - {label: "Body", name: "body", widget: "markdown"}
+    meta: # Meta data fields. Just like fields, but without any preview element
+      - {label: "Publish Date", name: "date", widget: "datetime", format: "YYYY-MM-DD hh:mm:ss"}