Jan 12, 2018 · Jan 11, 2018
diff --git a/templating/twig_extension.rst b/templating/twig_extension.rst
 to create a Twig extension. You can read more about `Twig Extensions`_ in the Twig
 documentation.

 .. tip::

    Before writing your own Twig extension, check if the filter/function that
    you need is already implemented in the :doc:`Symfony Twig extensions </reference/twig_reference>`.
    Check also the `official Twig extensions`_, which can be installed in your
    application as follows:

    .. code-block:: terminal

        $ composer require twig/extensions

 Create the Extension Class
 --------------------------


 You can now start using your filter in any Twig template.

 .. _`official Twig extensions`: 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
Original file line number	Diff line number	Diff line change
Expand Up		@@ -8,6 +8,17 @@ If you need to create custom Twig functions, filters, tests or more, you'll need
		to create a Twig extension. You can read more about `Twig Extensions`_ in the Twig
		documentation.

		.. tip::

		Before writing your own Twig extension, check if the filter/function that
		you need is already implemented in the :doc:`Symfony Twig extensions </reference/twig_reference>`.
		Check also the `official Twig extensions`_, which can be installed in your
		application as follows:

		.. code-block:: terminal

		$ composer require twig/extensions

		Create the Extension Class
		--------------------------

Expand DownExpand Up		@@ -62,6 +73,7 @@ you're done! Symfony will automatically know about your new service and add the

		You can now start using your filter in any Twig template.

		.. _`official Twig extensions`: 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
Expand Down