Fixed typo

Author: nomack84

components/routing.rst

@@ -48,7 +48,7 @@ your autoloader to load the Routing component::
 
     Be careful when using ``$_SERVER['REQUEST_URI']``, as it may include
     any query parameters on the URL, which will cause problems with route
-    matching. An easy way to solve this is to use the HTTPFoundation component
+    matching. An easy way to solve this is to use the HttpFoundation component
     as explained :ref:`below<components-routing-http-foundation>`.
 
 You can add as many routes as you like to a