Fixed Apache License link and updated badge in README.md (#2528)

* Added license badge to the README.md file

* Rearranged badges based on the color. Some housekeeping stuff to keep things cleaner on REAME file

* Fix apache license link. It was redirecting to 404 page.

README.md

 # Kubernetes Dashboard
 
 [![Build Status](https://travis-ci.org/kubernetes/dashboard.svg?branch=master)](https://travis-ci.org/kubernetes/dashboard)
-[![Coverage Status](https://codecov.io/github/kubernetes/dashboard/coverage.svg?branch=master)](https://codecov.io/github/kubernetes/dashboard?branch=master)
 [![Go Report Card](https://goreportcard.com/badge/github.com/kubernetes/dashboard)](https://goreportcard.com/report/github.com/kubernetes/dashboard)
-[![GitHub release](https://img.shields.io/github/release/kubernetes/dashboard.svg)](https://github.com/kubernetes/dashboard/releases/latest)
 [![Greenkeeper badge](https://badges.greenkeeper.io/kubernetes/dashboard.svg)](https://greenkeeper.io/)
+[![Coverage Status](https://codecov.io/github/kubernetes/dashboard/coverage.svg?branch=master)](https://codecov.io/github/kubernetes/dashboard?branch=master)
+[![GitHub release](https://img.shields.io/github/release/kubernetes/dashboard.svg)](https://github.com/kubernetes/dashboard/releases/latest)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/kubernetes/dashboard/blob/master/LICENSE)
 
 Kubernetes Dashboard is a general purpose, web-based UI for Kubernetes clusters. It allows users to manage applications
 running in the cluster and troubleshoot them, as well as manage the cluster itself.
@@ -53,4 +54,4 @@ contributing
 ## License
 
 The work done has been licensed under Apache License 2.0. The license file can be found [here](LICENSE). You can find
-out more about the license at [www.apache.org/licenses/LICENSE-2.0](www.apache.org/licenses/LICENSE-2.0).
+out more about the license at [www.apache.org/licenses/LICENSE-2.0](//www.apache.org/licenses/LICENSE-2.0).