docs: add Guild#features type (#2105)

* docs: add Guild#features type

* fixed spacing

* make it a list, and add MORE_EMOJI

src/structures/Guild.js

@@ -114,8 +114,18 @@ class Guild extends Base {
     this.large = Boolean('large' in data ? data.large : this.large);
 
     /**
-     * An array of guild features
-     * @type {string[]}
+     * An array of enabled guild features, here are the possible values:
+     * * INVITE_SPLASH 
+     * * MORE_EMOJI
+     * * VERIFIED
+     * * VIP_REGIONS
+     * * VANITY_URL
+     * @typedef {string} Features
+     */
+
+    /**
+     * An array of guild features partnered guilds have enabled
+     * @type {Features[]}
      */
     this.features = data.features;