docs(guide/Forms): display scope form / master data in examples

It will be good to have the binding results in the CSS classes /
binding to form / control state example, similar to the Simple Form
example.

Closes #12326

Author: maurya777

docs/content/guide/forms.ngdoc

@@ -95,6 +95,8 @@ and failing to satisfy its validity.
         <input type="button" ng-click="reset()" value="Reset" />
         <input type="submit" ng-click="update(user)" value="Save" />
       </form>
+      <pre>form = {{user | json}}</pre>
+      <pre>master = {{master | json}}</pre>
     </div>
 
     <style type="text/css">
@@ -183,6 +185,8 @@ didn't interact with a control
         <input type="button" ng-click="reset(form)" value="Reset" />
         <input type="submit" ng-click="update(user)" value="Save" />
       </form>
+      <pre>form = {{user | json}}</pre>
+      <pre>master = {{master | json}}</pre>
     </div>
   </file>