Added NPM badge

Author: willstocks

README.md

@@ -1,7 +1,9 @@
 [![HitCount](http://hits.dwyl.io/willstocks-tech/dynamically-polyfill-a-script.svg)](http://hits.dwyl.io/willstocks-tech/dynamically-polyfill-a-script)
 [![](https://data.jsdelivr.com/v1/package/gh/willstocks-tech/dynamically-polyfill-features-for-a-script/badge?style=rounded)](https://www.jsdelivr.com/package/gh/willstocks-tech/dynamically-polyfill-features-for-a-script) 
+![npm](https://img.shields.io/npm/v/dynamic-polyfiller.svg)
 ![](https://img.shields.io/github/release/willstocks-tech/dynamically-polyfill-features-for-a-script.svg?label=latest%20release) 
 ![](https://img.shields.io/github/release-pre/willstocks-tech/dynamically-polyfill-features-for-a-script.svg?label=latest%20beta) 
+
 [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/willstocks-tech/dynamically-polyfill-features-for-a-script/issues) 
 ![](https://img.shields.io/github/languages/top/willstocks-tech/dynamically-polyfill-features-for-a-script.svg?label=javascript&logo=languages&colorB=f1e05a) 
 [![Maintainability](https://api.codeclimate.com/v1/badges/8d00c9006111c5360102/maintainability)](https://codeclimate.com/github/willstocks-tech/dynamically-polyfill-features-for-a-script/maintainability)