fix yml marker to yaml

nykopol · xabbuh · commit db65dd811095 · 2016-11-28T22:08:30.000+01:00
diff --git a/security/access_denied_handler.rst b/security/access_denied_handler.rst
@@ -58,7 +58,7 @@ You can use it to send a mail, log a message, or generally return a custom Respo
 
 Then you must register your service :
 
-.. code-block:: yml
+.. code-block:: yaml
 
     # app/config/services.yml
     services:
