chore: add plugin list at /plugins

docs/plugins/index.md

@@ -1,3 +1,12 @@
 # Overview
 
-WIP.
+Please see our official plugins:
+
+-   [Scenes](/plugins/scenes)
+-   [Session](/plugins/session)
+-   [Auto retry](/plugins/auto-retry)
+-   [Media cache](/plugins/media-cache)
+-   [Media group](/plugins/media-group)
+-   [I18n](/plugins/i18n)
+-   [Autoload](/plugins/autoload)
+-   [Prompt](/plugins/prompt)

docs/plugins/official/prompt.md

@@ -8,7 +8,7 @@ head:
 
     - - meta
       - name: "keywords"
-        content: "Telegram, Telegram Bot API, GramIO, TypeScript, Deno, Bun, Node.JS, Nodejs, plugin, prompt, wait, ask"
+        content: "Telegram, Telegram Bot API, GramIO, TypeScript, Deno, Bun, Node.JS, Nodejs, plugin, prompt, wait, ask, conversation, dialog"
 ---
 
 # Prompt Plugin