Add a function to get user organizations

Author: m1guelpf

lib/Github/Api/User.php

@@ -71,6 +71,17 @@ public function organizations($username)
         return $this->get('/users/'.rawurlencode($username).'/orgs');
     }
 
+    /**
+     * Get user organizations
+     *
+     * @link https://developer.github.com/v3/orgs/#list-your-organizations
+     *
+     * @return array information about organizations that authenticated user belongs to
+     */
+    public function orgs($username)
+    {
+        return $this->get('/user/orgs');
+    }
     /**
      * Request the users that a specific user is following.
      *