Update event_dispatcher.rst

Co-authored-by: Oskar Stark <oskarstark@googlemail.com>

Author: Nyholm

event_dispatcher.rst

@@ -322,7 +322,6 @@ its name:
 
     $ php bin/console debug:event-dispatcher kernel.exception
 
-
 To get everything matching "kernel" (i.e. ``kernel.exception``, ``kernel.response`` etc.) use:
 
 .. code-block:: terminal