Fixed sample code syntax

Author: javiereguiluz

templating/hinclude.rst

@@ -93,7 +93,7 @@ Use the ``attributes`` option to define the value of hinclude.js options:
 .. code-block:: twig
 
     {# by default, cross-site requests don't use credentials such as cookies, authorization
-       headers or TLS client certificates; set this option to 'true' to use them
+       headers or TLS client certificates; set this option to 'true' to use them #}
     {{ render_hinclude(controller('...'), {attributes: {data-with-credentials: 'true'}}) }}
 
     {# by default, the JavaScript code included in the loaded contents is not run;