chore: general cleanup (#5661)

docs/index.yml

@@ -2,8 +2,6 @@
   files:
     - name: Welcome
       path: welcome.md
-    - name: Updating your code
-      path: updating.md
     - name: FAQ
       path: faq.md
 - name: Topics
@@ -12,21 +10,3 @@
       path: voice.md
     - name: Partials
       path: partials.md
-- name: Examples
-  files:
-    - name: Ping
-      path: ping.js
-    - name: Avatars
-      path: avatars.js
-    - name: Attachments
-      path: attachments.md
-    - name: Server greeting
-      path: greeting.js
-    - name: Message Embed
-      path: embed.js
-    - name: Moderation
-      path: moderation.md
-    - name: Webhook
-      path: webhook.js
-    - name: Slash Commands
-      path: commands.md