[docs] Promote Documentation docs & Content guidelines to new Writing navbar

Author: andrewnicols

config/navbar.js

@@ -64,11 +64,25 @@ const navbar = {
             docsPluginId: 'general',
         },
         {
-            type: 'docSidebar',
+            type: 'dropdown',
+            label: 'Writing',
+            items: [
+                {
+                    type: 'docSidebar',
+                    // position: 'left',
+                    sidebarId: 'contentguidelines',
+                    label: 'Content guidelines',
+                    docsPluginId: 'general',
+                },
+                {
+                    type: 'docSidebar',
+                    // position: 'left',
+                    sidebarId: 'documentation',
+                    label: 'Documentation',
+                    docsPluginId: 'general',
+                },
+            ],
             position: 'left',
-            sidebarId: 'contentguidelines',
-            label: 'Content guidelines',
-            docsPluginId: 'general',
         },
 
         // Right.

sidebars/docs.js

@@ -49,13 +49,6 @@ const sidebars = {
                 id: 'apis',
             },
         },
-
-        {
-            label: 'Content guidelines',
-            type: 'link',
-            href: '/general/contentguidelines',
-        },
-
         {
             label: 'Developer update',
             type: 'doc',
@@ -71,6 +64,13 @@ const sidebars = {
             type: 'link',
             href: '/general/releases',
         },
+
+        {
+            label: 'Content guidelines',
+            type: 'link',
+            href: '/general/contentguidelines',
+        },
+
         {
             label: 'Projects',
             type: 'link',