Update routing.rst

Author: ThomasLandauer

routing.rst

@@ -1203,7 +1203,7 @@ the common configuration using options when importing the routes.
             # Uncomment this option to make that URL "/blog" instead
             # trailing_slash_on_root: false
             # you can optionally exclude some files/subdirectories when loading annotations
-            exclude: '../../src/Controller/{DebugEmailController}.php'
+            # exclude: '../../src/Controller/{DebugEmailController}.php'
 
     .. code-block:: xml