Add NPM badge

Author: llaumgui

README.md

@@ -1,7 +1,8 @@
 # jQuery async Gravatar
 
-[![Build Status branch master](https://travis-ci.org/llaumgui/jquery-async-gravatar.svg?branch=master)](https://travis-ci.org/llaumgui/jquery-async-gravatar) [![dependencies Status](https://david-dm.org/llaumgui/jquery-async-gravatar/status.svg)](https://david-dm.org/llaumgui/jquery-async-gravatar) [![devDependency Status](https://david-dm.org/llaumgui/jquery-async-gravatar/dev-status.png)](https://david-dm.org/llaumgui/jquery-async-gravatar#info=devDependencies)
-[![Code Climate](https://codeclimate.com/github/llaumgui/jquery-async-gravatar/badges/gpa.svg)](https://codeclimate.com/github/llaumgui/jquery-async-gravatar) [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/llaumgui/jquery-async-gravatar.svg)](http://isitmaintained.com/project/llaumgui/jquery-async-gravatar "Average time to resolve an issue") [![Percentage of issues still open](http://isitmaintained.com/badge/open/llaumgui/jquery-async-gravatar.svg)](http://isitmaintained.com/project/llaumgui/jquery-async-gravatar "Percentage of issues still open") [![Inline docs](http://inch-ci.org/github/llaumgui/jquery-async-gravatar.svg?branch=master)](http://inch-ci.org/github/llaumgui/jquery-async-gravatar)
+[![npm version](https://badge.fury.io/js/jquery-async-gravatar.svg)](https://www.npmjs.com/package/jquery-async-gravatar) [![Build Status branch master](https://travis-ci.org/llaumgui/jquery-async-gravatar.svg?branch=master)](https://travis-ci.org/llaumgui/jquery-async-gravatar) [![dependencies Status](https://david-dm.org/llaumgui/jquery-async-gravatar/status.svg)](https://david-dm.org/llaumgui/jquery-async-gravatar) [![devDependency Status](https://david-dm.org/llaumgui/jquery-async-gravatar/dev-status.png)](https://david-dm.org/llaumgui/jquery-async-gravatar#info=devDependencies)
+[![Code Climate](https://codeclimate.com/github/llaumgui/jquery-async-gravatar/badges/gpa.svg)](https://codeclimate.com/github/llaumgui/jquery-async-gravatar)<br />
+[![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/llaumgui/jquery-async-gravatar.svg)](http://isitmaintained.com/project/llaumgui/jquery-async-gravatar "Average time to resolve an issue") [![Percentage of issues still open](http://isitmaintained.com/badge/open/llaumgui/jquery-async-gravatar.svg)](http://isitmaintained.com/project/llaumgui/jquery-async-gravatar "Percentage of issues still open") [![Inline docs](http://inch-ci.org/github/llaumgui/jquery-async-gravatar.svg?branch=master)](http://inch-ci.org/github/llaumgui/jquery-async-gravatar)
 
 An asynchronous loading method for Gravatar images.