using reference was missing

Needs to add using to resolve Controller reference

using Microsoft.AspNet.Mvc

reference was just cut off by 1 line, was lines: 6-28 now 5-28 to include the using line.

aspnet/tutorials/first-mvc-app/adding-controller.rst

@@ -36,7 +36,7 @@ Replace the contents of *Controllers/HelloWorldController.cs* with the following
 .. literalinclude:: start-mvc/sample/src/MvcMovie/Controllers/HelloWorldController.cs
 	:language: c#
 	:linenos: 
-	:lines: 6-28
+	:lines: 5-28
 
 Every ``public`` method in a controller is callable. In the sample above, both methods return a string.  Note the comments preceding each method: