minor #6158 Update override_dir_structure.rst (denniskoenigComparon)

This PR was submitted for the 3.0 branch but it was merged into the 2.3 branch instead (closes #6158).

Discussion
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Update override_dir_structure.rst

Fix typo

Commits
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28d5e3b Update override_dir_structure.rst

Author: wouterj

cookbook/configuration/override_dir_structure.rst

@@ -30,7 +30,7 @@ Override the ``cache`` Directory
 --------------------------------
 
 You can change the default cache directory by overriding the ``getCacheDir`` method
-in the ``AppKernel`` class of you application::
+in the ``AppKernel`` class of your application::
 
     // app/AppKernel.php