Add existing projects

Author: cjam

PROJECTS.md

@@ -0,0 +1,5 @@
+## Projects using this library
+
+The following projects are using this library to do great things:
+
+- https://github.com/hardcore-study-group/music-shorts

README.md

@@ -302,3 +302,8 @@ Big thanks to [@lufinkey](https://github.com/lufinkey) and all of the great work
 <!-- prettier-ignore-end -->
 
 <!-- ALL-CONTRIBUTORS-LIST:END -->
+
+
+## Projects using this library
+
+Checkout existing [Projects](./PROJECTS.md) that are using this library.