Update README.md

Mention that the GIF demo is the real Wix app and remove the old example demo until we have an updated version.

README.md

 
 React Native Navigation provides 100% native platform navigation on both iOS and Android for React Native apps. The JavaScript API is simple and cross-platform - just install it in your app and give your users the native feel they deserve. Using redux? No problem: React Native Navigation comes with optional redux support out of the box. Ready to get started? Check out the [docs](https://wix.github.io/react-native-navigation/).
 
+### Real world examples
+
+#### The Wix App
 <img src="https://github.com/wix/react-native/blob/master/src/videos/demo.gif?raw=true" width="240">&nbsp;&nbsp;&nbsp;&nbsp;
-<img src="https://github.com/wix/mobile/blob/master/src/videos/final_element_Transition.mp4.gif?raw=true" width="240">
 
 ## Quick Links
 * [Documentation](https://wix.github.io/react-native-navigation/#/)