Merge branch '5.1'

* 5.1:
  Minor fixes

Author: javiereguiluz

mercure.rst

@@ -352,15 +352,15 @@ of the ``Update`` constructor to ``true``::
             );
 
             // Publisher's JWT must contain this topic, a URI template it matches or * in mercure.publish or you'll get a 401
-            // Subscriber's JWT must contain this topic, a URI template it matches or or * in mercure.subscribe to receive the update
+            // Subscriber's JWT must contain this topic, a URI template it matches or * in mercure.subscribe to receive the update
             $publisher($update);
 
             return new Response('private update published!');
         }
     }
 
 To subscribe to private updates, subscribers must provide to the Hub
-a JWT containing containing a topic selector matching by the update's topic.
+a JWT containing a topic selector matching by the update's topic.
 
 To provide this JWT, the subscriber can use a cookie,
 or a ``Authorization`` HTTP header.