docs: update readme

Author: manucabral

README.md

@@ -1,7 +1,9 @@
 <p align="center">
 <img src="https://github.com/manucabral/YoutubeMusicRPC/blob/main/assets/logo.png?raw=true" width="250" title="example">
+<img src="https://github.com/manucabral/YoutubeMusicRPC/blob/main/assets/app.png?raw=true" title="app">
 </p>
 
+
 <p align="center">
    A YouTube Music Rich Presence client that show what you're listening client made with ❤️.
    This app only works in a browser.