Update README.md

Author: kevinongko

README.md

@@ -1,6 +1,7 @@
 # vue-numeric
 
 [![npm version](https://badge.fury.io/js/vue-numeric.svg)](https://badge.fury.io/js/vue-numeric)
+[![npm](https://img.shields.io/npm/dt/vue-numeric.svg)](https://www.npmjs.com/package/vue-numeric)
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](http://opensource.org/licenses/MIT)
 
 Numeric input component based on [Vue](https://vuejs.org/).