Improve routing debug page

Author: Ahmed TAILOULOUTE

routing/debug.rst

@@ -18,12 +18,15 @@ your application:
 
 .. code-block:: text
 
-    homepage              ANY       /
-    contact               GET       /contact
-    contact_process       POST      /contact
-    article_show          ANY       /articles/{_locale}/{year}/{title}.{_format}
-    blog                  ANY       /blog/{page}
-    blog_show             ANY       /blog/{slug}
+------------------ -------- -------- ------ ----------------------------------------------
+ Name               Method   Scheme   Host   Path
+------------------ -------- -------- ------ ----------------------------------------------
+ homepage           ANY      ANY      ANY    /
+ contact            GET      ANY      ANY    /contact
+ contact_process    POST     ANY      ANY    /contact
+ article_show       ANY      ANY      ANY    /articles/{_locale}/{year}/{title}.{_format}
+ blog               ANY      ANY      ANY    /blog/{page}
+ blog_show          ANY      ANY      ANY    /blog/{slug}
 
 You can also get very specific information on a single route by including
 the route name after the command:
@@ -44,3 +47,19 @@ This command will print which route the URL matches.
 .. code-block:: text
 
     Route "blog_show" matches
+
+If you want to list the controller configured with each route, you can use the ``--show-controllers`` option:
+
+.. code-block:: terminal
+
+    $ php app/console debug:router --show-controllers
+
+This command will print a list of *all* the configured routes in your application
+with a new column *Controller* which shows the controller configred for a specific route:
+
+.. code-block:: text
+
+    --------------- -------- -------- ------ -------------- ---------------------
+     Name            Method   Scheme   Host   Path           Controller
+    --------------- -------- -------- ------ -------------- ---------------------
+     blog_show       ANY      ANY      ANY    /blog/{slug}   AppBundle:Blog:show