Add npm version badge

README.md

@@ -2,7 +2,10 @@
 
 > Exports a [`jsdom`](https://github.com/tmpvar/jsdom) window object.
 
-[![Build Status](https://travis-ci.org/lukechilds/window.svg?branch=master)](https://travis-ci.org/lukechilds/window) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/window/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/window?branch=master) [![npm](https://img.shields.io/npm/dm/window.svg)](https://www.npmjs.com/package/window)
+[![Build Status](https://travis-ci.org/lukechilds/window.svg?branch=master)](https://travis-ci.org/lukechilds/window)
+[![Coverage Status](https://coveralls.io/repos/github/lukechilds/window/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/window?branch=master)
+[![npm](https://img.shields.io/npm/dm/window.svg)](https://www.npmjs.com/package/window)
+[![npm](https://img.shields.io/npm/v/window.svg)](https://www.npmjs.com/package/window)
 
 Exports a jsdom window object. This is useful for enabling browser modules to run in Node.js or testing browser modules in any Node.js test framework.