do more docs

src/structures/GuildChannel.js

@@ -207,10 +207,6 @@ class GuildChannel extends Channel {
     return this.rest.client.rest.methods.updateChannel(this, { topic });
   }
 
-  setBitrate(bitrate) {
-    return this.rest.client.rest.methods.updateChannel(this, { bitrate });
-  }
-
   /**
    * When concatenated with a String, this automatically concatenates the Channel's name instead of the Channel object.
    * @returns {String}

src/structures/GuildMember.js

@@ -1,5 +1,9 @@
 const TextBasedChannel = require('./interface/TextBasedChannel');
 
+/**
+ * Represents a Member of a Guild on Discord
+ * @implements {TextBasedChannel}
+ */
 class GuildMember {
   constructor(guild, data) {
     this.client = guild.client;
@@ -64,6 +68,14 @@ class GuildMember {
   kick() {
     return this.client.rest.methods.kickGuildMember(this.guild, this);
   }
+
+  sendMessage() {
+    return;
+  }
+
+  sendTTSMessage() {
+    return;
+  }
 }
 
 TextBasedChannel.applyToClass(GuildMember);

src/structures/VoiceChannel.js

@@ -13,9 +13,31 @@ class VoiceChannel extends GuildChannel {
 
   setup(data) {
     super.setup(data);
+    /**
+     * The bitrate of this voice channel
+     * @type {Number}
+     */
     this.bitrate = data.bitrate;
+    /**
+     * The maximum amount of users allowed in this channel - 0 means unlimited.
+     * @type {Number}
+     */
     this.userLimit = data.user_limit;
   }
+
+  /**
+   * Sets the bitrate of the channel
+   * @param {Number} bitrate the new bitrate
+   * @returns {Promise<VoiceChannel>}
+   * @example
+   * // set the bitrate of a voice channel
+   * voiceChannel.setBitrate(48000)
+   *  .then(vc => console.log(`Set bitrate to ${vc.bitrate} for ${vc.name}`))
+   *  .catch(console.log);
+   */
+  setBitrate(bitrate) {
+    return this.rest.client.rest.methods.updateChannel(this, { bitrate });
+  }
 }
 
 module.exports = VoiceChannel;