More docs cleanup

src/structures/GroupDMChannel.js

@@ -47,8 +47,8 @@ class GroupDMChannel extends Channel {
     this.name = data.name;
 
     /**
-     * A hash of the Group DM icon.
-     * @type {string}
+     * A hash of this Group DM icon
+     * @type {?string}
      */
     this.icon = data.icon;
 
@@ -70,11 +70,13 @@ class GroupDMChannel extends Channel {
      */
     this.applicationID = data.application_id;
 
-    /**
-     * Nicknames for group members
-     * @type {?Collection<Snowflake, string>}
-     */
-    if (data.nicks) this.nicks = new Collection(data.nicks.map(n => [n.id, n.nick]));
+    if (data.nicks) {
+      /**
+       * Nicknames for group members
+       * @type {?Collection<Snowflake, string>}
+       */
+      this.nicks = new Collection(data.nicks.map(n => [n.id, n.nick]));
+    }
 
     if (!this.recipients) {
       /**

src/structures/Guild.js

@@ -18,7 +18,7 @@ const Snowflake = require('../util/Snowflake');
 class Guild {
   constructor(client, data) {
     /**
-     * The client that created the instance of the the guild
+     * The client that created the instance of the guild
      * @name Guild#client
      * @type {Client}
      * @readonly

src/structures/MessageMentions.js

@@ -102,7 +102,7 @@ class MessageMentions {
 
   /**
    * Any channels that were mentioned
-   * @type {?Collection<Snowflake, GuildChannel>}
+   * @type {Collection<Snowflake, GuildChannel>}
    * @readonly
    */
   get channels() {

src/structures/User.js

@@ -10,7 +10,7 @@ const Snowflake = require('../util/Snowflake');
 class User {
   constructor(client, data) {
     /**
-     * The client that created the instance of the the user
+     * The client that created the instance of the user
      * @name User#client
      * @type {}
      * @readonly

src/structures/Webhook.js

@@ -36,7 +36,7 @@ class Webhook {
 
     /**
      * The avatar for the webhook
-     * @type {string}
+     * @type {?string}
      */
     this.avatar = data.avatar;