update README with npm dependency badges

Author: borysn

README.md

@@ -1,5 +1,7 @@
 [![Build Status](https://travis-ci.org/borysn/spring-boot-angular2.svg?branch=master)](https://travis-ci.org/borysn/spring-boot-angular2)
 [![Gitter](https://badges.gitter.im/borysn/spring-boot-angular2.svg)](https://gitter.im/borysn/spring-boot-angular2?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+[![bitHound Dependencies](https://www.bithound.io/github/borysn/spring-boot-angular2/badges/dependencies.svg)](https://www.bithound.io/github/borysn/spring-boot-angular2/master/dependencies/npm)
+[![bitHound Dev Dependencies](https://www.bithound.io/github/borysn/spring-boot-angular2/badges/devDependencies.svg)](https://www.bithound.io/github/borysn/spring-boot-angular2/master/dependencies/npm)
 
 # upcoming changes 
 - first class npm support