docs: added link to the simple raect-navigation demo app

Author: IjzerenHein

README.md

@@ -49,7 +49,7 @@ The library also aims to support the `web` platform with an optimized DOM implem
     - [SharedElementAnimation](#sharedelementanimation)
     - [SharedElementResize](#sharedelementresize)
     - [SharedElementAlign](#sharedelementalign)
-- [Example app](#example-app)
+- [Example apps](#example-apps)
 - [License](#license)
 - [Credits](#credits)
 
@@ -212,10 +212,10 @@ In this case you can use `resize="clip"` and `align="left-top"` to create a text
 
 When `auto` is selected, the default alignment strategy is used, which is `center-center`.
 
+## Example apps
 
-## Example app
-
-The example app is located in [`./Example`](./Example) and serves as an exploration and testing tool. It features a custom stack router which implements the shared element primitives. It also implements the react-navigation binding and serves as a testing tool for that.
+- The main example & test app is located in [`./Example`](./Example) and serves as an exploration and testing tool. It features a custom stack router which implements the shared element primitives. It also implements the react-navigation binding and serves as a testing tool for that.
+- [Simple demo app using RN60 and the react-navigation binding](https://github.com/IjzerenHein/react-navigation-sharedelement-rn60demo)
 
 **Usage**