Update README.md

Author: David-Desmaisons

README.md

@@ -5,6 +5,7 @@
 [![GitHub closed issues](https://img.shields.io/github/issues-closed/David-Desmaisons/Vue.Dragable.For.svg?maxAge=2592000)]()
 [![Npm download](https://img.shields.io/npm/dt/vuedragablefor.svg?maxAge=2592000)](https://www.npmjs.com/package/vuedragablefor)
 [![Npm version](https://img.shields.io/npm/v/vuedragablefor.svg?maxAge=2592000)](https://www.npmjs.com/package/vuedragablefor)
+[![Package Quality](http://npm.packagequality.com/shield/vuedragablefor.svg)](http://packagequality.com/#?package=vuedragablefor)
 [![MIT License](https://img.shields.io/github/license/David-Desmaisons/Vue.Dragable.For.svg)](https://github.com/David-Desmaisons/Vue.Dragable.For/blob/master/LICENSE)