feat: Voice Message docs

Document/Message.md

@@ -1,7 +1,19 @@
-# Quick Links:
-- [Interaction](https://github.com/aiko-chan-ai/discord.js-selfbot-v13/blob/main/Document/Message.md#interaction)
-- [Embed](https://github.com/aiko-chan-ai/discord.js-selfbot-v13/blob/main/Document/Message.md#messageembed-)
-- [Slash command demo](https://github.com/aiko-chan-ai/discord.js-selfbot-v13/blob/main/Document/SlashCommand.md)
+## Voice Message
+```js
+        const channel = client.channels.cache.get('cid');
+        const attachment = new Discord.MessageAttachment(
+            './test.mp3', // path file
+            'test.ogg', // must be .ogg
+            {
+                waveform: '=',
+                duration_secs: 1, // any number you want
+            },
+        );
+        channel.send({
+            files: [attachment],
+            flags: 'IS_VOICE_MESSAGE',
+        });
+```
 
 ## Interaction
 <details open>

src/structures/MessagePayload.js

@@ -42,6 +42,7 @@ class MessagePayload {
      * @property {Buffer|string|Stream} attachment The original attachment that generated this file
      * @property {string} name The name of this file
      * @property {Buffer|Stream} file The file to be sent to the API
+     * @extends {APIAttachment}
      */
 
     /**