Removed repetition from Final Thoughts Section

Author: mervinmcdougall

controller.rst

@@ -607,8 +607,8 @@ Final Thoughts
 --------------
 
 In Symfony, a controller is usually a class method which is used to accept requests,
-and return a ``Response`` object. When mapped with a url, a controller a controller's response
-can be viewed.
+and return a ``Response`` object. When mapped with a url, a controller becomes accessible
+and its response can be viewed.
 
 To facilitate the development of controllers, Symfony provides an  ``AbstractController``.  It
 can be used to extend the controller class allowing access to some frequently used utilities