add missing badge to npm & jsdelivr

Author: obiot

README.md

@@ -2,6 +2,8 @@
 ![melonJS Logo](https://github.com/melonjs/melonJS/raw/master/media/Banner/Banner%20-%20Billboard%20-%20Original%20Logo%20-%20horizontal.png)
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/melonjs/es6-boilerplate/blob/master/LICENSE)
+[![NPM Package](https://img.shields.io/npm/v/@melonjs/debug-plugin)](https://www.npmjs.com/package/@melonjs/debug-plugin)
+[![jsDeliver](https://data.jsdelivr.com/v1/package/npm/@melonjs/debug-plugin/badge?style=rounded)](https://www.jsdelivr.com/package/npm/@melonjs/debug-plugin)
 
 Installation
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