Merge pull request hemanth#108 from djm158/pwa-starter-kit

add pwa-starter-kit

README.md

@@ -212,6 +212,7 @@ _Source:_ [Google Developers - Progressive Web Apps](https://developers.google.c
 * [`Web Starter Kit`](https://github.com/google/web-starter-kit): A workflow for multi-device websites.
 * [`Progressive Web Application skeleton`](https://github.com/PolymerLabs/progressive-webapp-config): A simple set of skeleton files for shipping a Progressive Web App.
 * [`pwabuilder`](http:https://www.pwabuilder.com/): All the tools you need to build and deploy your Progressive Web Apps.
+* [`pwa-starter-kit`](https://github.com/Polymer/pwa-starter-kit/): Starter templates for building PWAs
 
 ## Courses