minor #11146 remove .. code-block:: php (OskarStark)

javiereguiluz · javiereguiluz · commit c7246c95c92f · 2019-03-13T12:18:20.000+01:00
This PR was submitted for the master branch but it was merged into the 3.4 branch instead (closes #11146). Discussion ---------- remove .. code-block:: php and replace it by a text  Commits ------- b9edc20 remove .. code-block:: php
diff --git a/form/events.rst b/form/events.rst
@@ -339,7 +339,7 @@ Event subscribers have different uses:
 * Listening to multiple events;
 * Regrouping multiple listeners inside a single class.
 
-.. code-block:: php
+Consider the following example of an ``AddEmailFieldListener``::
 
     // src/AppBundle/Form/EventListener/AddEmailFieldListener.php
     namespace AppBundle\Form\EventListener;
