add missing imports to bootleg README example

Author: artsyit

README.md

@@ -26,6 +26,7 @@ The functionality of the controller layer is implemented using [generator functi
 ```
 // controllers/app_controller.js
 
+import { controller, getProps } from 'react-redux-controller';
 import AppLayout from '../components/app_layout';
 import * as mySelectors from '../selectors/my_selectors';
 
@@ -51,4 +52,4 @@ export default controller(AppLayout, controllerMethodFactories, selectorBundles)
 
 ```
 
-Better examples to come.
+Better examples to come.