Update README.md

Author: Luca Degasperi

README.md

@@ -244,6 +244,19 @@ Route::get('secure-route', array('before' => 'oauth:scope1,scope2|oauth-owner:cl
 }));
 ```
 
+## Getting the token owner ID and type
+
+When accessing your API with an access token, you might want to know who's the owner of that token. The server makes it trivial.
+
+```php
+$ownerId = ResourceServer::getOwnerId();
+```
+
+When using the ```client_credentials``` grant type you might have users mixed with clients, to distinguish them use the following method
+
+```php
+$ownerType = ResourceServer::getOwnerType();
+```
 
 The aim of this package is to make working with oauth2 server stuff in Laravel a breeze. You can still access all the undelying power of the league/oauth2-server package via the ```ResourceServer``` and ```AuthorizationServer``` facades.