Updated README

README.md

@@ -12,12 +12,13 @@ Authenticate and Get Going in 15 seconds
 All you need in order to authenticate with Citrix's API is consumer key, which you can obtain by registering at [Citrix Developer Center][1]. After registering and adding your application, you will be given *Consumer Key*, 
 *Consumer Secret*, and *Callback URL*. You need the *Consumer Key* in order for your application to authenticate with Citrix. 
 
-In addition to the *Consumer Key*, you need your *username* and *password*, which is the one that you use to login to say [GoToWebinar.com][2].
+## Direct Authentication ##
+In addition to the *Consumer Key*, for **Direct Authentication** you need your *username* and *password*, which is the one that you use to login to say [GoToWebinar.com][2].
 
 You can authenticate to Citrix, and your GoToWebinar account respectively, like so:
 
 
-    $client = new \Citrix\Citrix('CONSUMER_KEY');
+    $client = new \Citrix\Authentication\Direct('CONSUMER_KEY');
     $client->auth('USERNAME', 'PASSWORD');