Update event_dispatcher.rst

Author: atailouloute

components/event_dispatcher.rst

@@ -404,7 +404,7 @@ from being called. In other words, the listener needs to be able to tell
 the dispatcher to stop all propagation of the event to future listeners
 (i.e. to not notify any more listeners). This can be accomplished from
 inside a listener via the
-:method:`Symfony\\Component\\EventDispatcher\\Event::stopPropagation` method::
+:method:`Symfony\\Contracts\\EventDispatcher\\Event::stopPropagation` method::
 
     use Acme\Store\Event\OrderPlacedEvent;