Few documentation fixes

doc/providers/csrf.rst

@@ -47,8 +47,6 @@ You can also use the CSRF protection even without using the Symfony Form
 component. If, for example, you're doing a DELETE action, you can check the
 CSRF token::
 
-.. code-block:: php
-
     use Symfony\Component\Security\Csrf\CsrfToken;
 
     $app['csrf.token_manager']->isTokenValid(new CsrfToken('token_id', 'TOKEN'));

doc/providers/twig.rst

@@ -110,8 +110,7 @@ Security Support
 If you are using the ``SecurityServiceProvider``, you will have access to the
 ``is_granted()`` function in templates. You can find more information in the
 `Symfony Security documentation
-<http://symfony.com/doc/current/book/security.html#access-control-in-templates>`
-_.
+<http://symfony.com/doc/current/book/security.html#access-control-in-templates>`_.
 
 Global Variable
 ~~~~~~~~~~~~~~~