fixed docs

doc/providers/twig.rst

@@ -125,7 +125,8 @@ from a template:
 
 .. note::
 
-    Read the Twig reference_ for Symfony document to learn more about the various Twig functions
+    Read the Twig `reference`_ for Symfony document to learn more about the
+    various Twig functions.
 
 Traits
 ------
@@ -167,4 +168,4 @@ You can configure the Twig environment before using it by extending the
 For more information, check out the `official Twig documentation
 <http://twig.sensiolabs.org>`_.
 
-.. reference_:: https://symfony.com/doc/current/reference/twig_reference.html#controller
+.. _reference_: https://symfony.com/doc/current/reference/twig_reference.html#controller

doc/services.rst

@@ -206,7 +206,7 @@ Silex defines a range of services.
   Request as input and returns a Response as output.
 
 * **request_context**: The request context is a simplified representation of
-  the request that is used by the Router and the :doc:`UrlGenerator </providers/url_generator.rst>`.
+  the request that is used by the Router and the :doc:`UrlGenerator </providers/url_generator>`.
 
 * **exception_handler**: The Exception handler is the default handler that is
   used when you don't register one via the ``error()`` method or if your