docs(ngValue): update example to use a module

src/ng/directive/input.js

@@ -1583,15 +1583,16 @@ var CONSTANT_VALUE_REGEXP = /^(true|false|\d+)$/;
  *   of the `input` element
  *
  * @example
-    <example name="ngValue-directive">
+    <example name="ngValue-directive" module="valueExample">
       <file name="index.html">
        <script>
-          function Ctrl($scope) {
-            $scope.names = ['pizza', 'unicorns', 'robots'];
-            $scope.my = { favorite: 'unicorns' };
-          }
+          angular.module('valueExample', [])
+            .controller('ExampleController', ['$scope', function($scope) {
+              $scope.names = ['pizza', 'unicorns', 'robots'];
+              $scope.my = { favorite: 'unicorns' };
+            }]);
        </script>
-        <form ng-controller="Ctrl">
+        <form ng-controller="ExampleController">
           <h2>Which is your favorite?</h2>
             <label ng-repeat="name in names" for="{{name}}">
               {{name}}