fix Twig-extensions links

Author: mhor

cookbook/templating/twig_extension.rst

@@ -126,7 +126,7 @@ Learning further
 For a more in-depth look into Twig Extensions, please take a look at the
 `Twig extensions documentation`_.
 
-.. _`Twig official extension repository`: https://github.com/fabpot/Twig-extensions
+.. _`Twig official extension repository`: https://github.com/twigphp/Twig-extensions
 .. _`Twig extensions documentation`: http://twig.sensiolabs.org/doc/advanced.html#creating-an-extension
 .. _`global variables`: http://twig.sensiolabs.org/doc/advanced.html#id1
 .. _`functions`: http://twig.sensiolabs.org/doc/advanced.html#id2

reference/dic_tags.rst

@@ -1393,6 +1393,6 @@ Then, tag it with the ``validator.initializer`` tag (it has no options).
 For an example, see the ``EntityInitializer`` class inside the Doctrine Bridge.
 
 .. _`Twig's documentation`: http://twig.sensiolabs.org/doc/advanced.html#creating-an-extension
-.. _`Twig official extension repository`: https://github.com/fabpot/Twig-extensions
+.. _`Twig official extension repository`: https://github.com/twigphp/Twig-extensions
 .. _`SwiftMailer's Plugin Documentation`: http://swiftmailer.org/docs/plugins.html
 .. _`Twig Loader`: http://twig.sensiolabs.org/doc/api.html#loaders