Reiterated that Request can be passed to controller methods in scope article

Author: richardmiller-zz

cookbook/service_container/scopes.rst

@@ -193,3 +193,14 @@ The service config for this class would look something like this:
     Injecting the whole container into a service is generally not a good
     idea (only inject what you need). In some rare cases, like when working
     with Twig extensions, its necessary to due a shortcoming in Twig itself.
+
+If you define a controller as a service then you can get a `Request` object
+without injecting the container by having it passed in as an argument of your
+action method::
+
+    use Symfony\Component\HttpFoundation\Request;
+
+    public function updateAction(Request $request)
+    {
+        // ...
+    }