Update README.md (#208)

Author: emicklei

README.md

@@ -156,6 +156,7 @@ Also expr provides powerful tool [exe](cmd/exe) for debugging. It has interactiv
 * [FACEIT](https://www.faceit.com/) uses Expr to allow customization of its eSports matchmaking algorithm.
 * [Mystery Minds](https://www.mysteryminds.com/en/) uses Expr to allow easy yet powerful customization of its matching algorithm.
 * <a href="https://www.qiniu.com/"><img height="18" src="https://www.qiniu.com/assets/img-horizontal-white-en-572b4c91fddcae4c9cf38ba89c9477397a2e1ffb74ec1c8f43e73cdfb860bbc6.png"></a> [qiniu](https://www.qiniu.com/) qiniu cloud use Expr in trade systems.
+* <a href="https://melrōse.org">Melrōse</a> uses Expr to implement its music programming language which allows for an interactive music composition experience.
 
 [Add your company too](https://github.com/antonmedv/expr/edit/master/README.md)