update README.md

Author: fanatid

README.md

@@ -1,15 +1,17 @@
 # pbkdf2
 
-[![build status](https://secure.travis-ci.org/crypto-browserify/pbkdf2.png)](http://travis-ci.org/crypto-browserify/pbkdf2)
-[![Coverage Status](https://img.shields.io/coveralls/crypto-browserify/pbkdf2.svg)](https://coveralls.io/r/crypto-browserify/pbkdf2)
-[![Version](http://img.shields.io/npm/v/pbkdf2.svg)](https://www.npmjs.org/package/pbkdf2)
+[![NPM Package](https://img.shields.io/npm/v/pbkdf2.svg?style=flat-square)](https://www.npmjs.org/package/pbkdf2)
+[![Build Status](https://img.shields.io/travis/crypto-browserify/pbkdf2.svg?branch=master&style=flat-square)](https://travis-ci.org/crypto-browserify/pbkdf2)
+[![Dependency status](https://img.shields.io/david/crypto-browserify/pbkdf2.svg?style=flat-square)](https://david-dm.org/crypto-browserify/pbkdf2#info=dependencies)
+
+[![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)
 
 This library provides the functionality of PBKDF2 with the ability to use any supported hashing algorithm returned from `crypto.getHashes()`
 
 
 ## Usage
 
-```
+```js
 var pbkdf2 = require('pbkdf2')
 var derivedKey = pbkdf2.pbkdf2Sync('password', 'salt', 1, 32, 'sha512')
 
@@ -19,6 +21,6 @@ var derivedKey = pbkdf2.pbkdf2Sync('password', 'salt', 1, 32, 'sha512')
 
 ## Credits
 
-This module is a derivative of https://github.com/cryptocoinjs/pbkdf2-sha256/, so thanks to [JP Richardson](https://github.com/cryptocoinjs/pbkdf2-sha256/) for laying the ground work.
+This module is a derivative of [cryptocoinjs/pbkdf2-sha256](https://github.com/cryptocoinjs/pbkdf2-sha256/), so thanks to [JP Richardson](http://github.com/jprichardson/) for laying the ground work.
 
 Thank you to [FangDun Cai](https://github.com/fundon) for donating the package name on npm, if you're looking for his previous module it is located at [fundon/pbkdf2](https://github.com/fundon/pbkdf2).