UIExplorer flowification

Examples/UIExplorer/CameraRollExample.ios.js

@@ -1,5 +1,6 @@
 /**
  * Copyright 2004-present Facebook. All Rights Reserved.
+ * @flow
  */
 'use strict';
 
@@ -108,6 +109,6 @@ exports.description = 'Example component that uses CameraRoll to list user\'s ph
 exports.examples = [
   {
     title: 'Photos',
-    render() { return <CameraRollExample />; }
+    render(): ReactElement { return <CameraRollExample />; }
   }
 ];