minor #11184 Fix typo in http_kernel_controller_resolver.rst (favianioel)

This PR was merged into the 4.2 branch.

Discussion
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Fix typo in http_kernel_controller_resolver.rst

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Commits
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2a8b2fe Fix typo in http_kernel_controller_resolver.rst

Author: javiereguiluz

create_framework/http_kernel_controller_resolver.rst

@@ -25,7 +25,7 @@ Update the route definition accordingly::
     $routes->add('leap_year', new Routing\Route('/is_leap_year/{year}', [
         'year' => null,
         '_controller' => [new LeapYearController(), 'index'],
-    )));
+    ]));
 
 The move is pretty straightforward and makes a lot of sense as soon as you
 create more pages but you might have noticed a non-desirable side-effect...