minor #4263 Fixed typo (zebba)

This PR was submitted for the 2.5 branch but it was merged into the 2.3 branch instead (closes #4263).

Discussion
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Fixed typo

Commits
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23fdef3 Fixed typo

reference/configuration/twig.rst

@@ -51,7 +51,7 @@ TwigBundle Configuration ("twig")
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:twig="http://symfony.com/schema/dic/twig"
             xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
-                                http://symfony.com/schema/dic/twig http://symfony.com/schema/dic/doctrine/twig-1.0.xsd">
+                                http://symfony.com/schema/dic/twig http://symfony.com/schema/dic/twig/twig-1.0.xsd">
 
             <twig:config auto-reload="%kernel.debug%" autoescape="true" base-template-class="Twig_Template" cache="%kernel.cache_dir%/twig" charset="%kernel.charset%" debug="%kernel.debug%" strict-variables="false">
                 <twig:form>