Update controller.rst

Author: AurelienPillevesse

controller.rst

@@ -542,8 +542,7 @@ if you want to map a nested array of specific DTOs::
 .. tip::
 
     If using typed properties with `MapRequestPayload`, it's recommanded to use built-in types (like `int`, `bool`, `string`...) for mapping. Using custom types can expose your application implementation outside with errors during denormalization.
-
-    Validating an Enum in your `#[MapRequestPayload]` class should look like this :
+    Validating an Enum in your `#[MapRequestPayload]` class should look like this:
 
     .. code-block:: php
 
@@ -573,7 +572,6 @@ if you want to map a nested array of specific DTOs::
             }
         }
 
-
 Managing the Session
 --------------------