Added npm version

README.md

@@ -3,7 +3,7 @@
 This is the Ethereum compatible JavaScript API using `Promise`s
 which implements the [Generic JSON RPC](https://github.com/ethereum/wiki/wiki/Generic-JSON-RPC) spec. It's available on npm as a node module and also for bower and component as an embeddable js
 
-[![Build Status][1]][2] [![dependency status][3]][4] [![dev dependency status][5]][6]
+[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![dependency status][dep-image]][dep-url] [![dev dependency status][dep-dev-image]][dep-dev-url]
 
 [![browser support](https://ci.testling.com/cubedro/ethereum.js.png)](https://ci.testling.com/cubedro/ethereum.js)
 
@@ -69,9 +69,11 @@ go get github.com/ethereum/go-ethereum/ethereum
 ethereum -ws -loglevel=4
 ```
 
-[1]: https://travis-ci.org/cubedro/ethereum.js.svg
-[2]: https://travis-ci.org/cubedro/ethereum.js
-[3]: https://david-dm.org/cubedro/ethereum.js.svg
-[4]: https://david-dm.org/cubedro/ethereum.js
-[5]: https://david-dm.org/cubedro/ethereum.js/dev-status.svg
-[6]: https://david-dm.org/cubedro/ethereum.js#info=devDependencies
+[npm-image]: https://badge.fury.io/js/ethereum.js.png
+[npm-url]: https://npmjs.org/package/ethereum.js
+[travis-image]: https://travis-ci.org/cubedro/ethereum.js.svg
+[travis-url]: https://travis-ci.org/cubedro/ethereum.js
+[dep-image]: https://david-dm.org/cubedro/ethereum.js.svg
+[dep-url]: https://david-dm.org/cubedro/ethereum.js
+[dep-dev-image]: https://david-dm.org/cubedro/ethereum.js/dev-status.svg
+[dep-dev-url]: https://david-dm.org/cubedro/ethereum.js#info=devDependencies