Added forgotten property, fixed docs a little

lib/structures/Interaction.js

@@ -3,6 +3,7 @@
 const Base = require("./Base");
 const Message = require("./Message");
 const Member = require("./Member");
+const User = require("./User");
 const Constants = require("../Constants");
 
 /**
@@ -11,8 +12,8 @@ const Constants = require("../Constants");
 * @prop {String?} channelId The interaction token
 * @prop {Object?} data The data attached to the interaction
 * @prop {Number?} data.componentType The type of Message Component (Message Component only)
-* @prop {String?} data.id The ID of the Slash Command (Slash Command)
 * @prop {String?} data.custom_id The ID of the Button (Message Component)
+* @prop {String?} data.id The ID of the Slash Command (Slash Command)
 * @prop {String?} data.name The command name (Slash Command only)
 * @prop {Array<Object>?} data.options The run Slash Command options (Slash Command only)
 * @prop {String?} data.options.name The name of the Slash Command option (Slash Command only)
@@ -23,6 +24,7 @@ const Constants = require("../Constants");
 * @prop {Message?} message The message the interaction came from (Message Component only)
 * @prop {String} token The interaction token (Interaction tokens are valid for 15 minutes and can be used to send followup messages but you must send an initial response within 3 seconds of receiving the event. If the 3 second deadline is exceeded, the token will be invalidated.)
 * @prop {Number} type 1 is a Ping, 2 is a Slash Command, 3 is a Message Component
+* @prop {User?} user the user who triggered the interaction (This is only send when the interaction is invoked within a dm)
 * @prop {Number} version The interaction version
 */
 class Interaction extends Base {
@@ -56,6 +58,10 @@ class Interaction extends Base {
             this.token = data.token;
         }
 
+        if(data.user !== undefined) {
+            this.user = new User(data.user, this._client);
+        }
+
         this.type = data.type;
         this.version = data.version;
     }