Add release/licence badge in readme

Author: th-ch

readme.md

@@ -1,4 +1,7 @@
-# YouTube Music [![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
+# YouTube Music
+[![GitHub release](https://img.shields.io/github/release/th-ch/youtube-music.svg)](https://GitHub.com/th-ch/youtube-music/releases/)
+[![GitHub license](https://img.shields.io/github/license/th-ch/youtube-music.svg)](https://github.com/th-ch/youtube-music/blob/master/LICENSE)
+[![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
 
 ![Screenshot](screenshot.jpg "Screenshot")