Update release badge to redirect to latest release (#1963)

README.md

@@ -2,7 +2,7 @@
 [![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)]()
+[![GitHub release](https://img.shields.io/github/release/kubernetes/dashboard.svg)](https://github.com/kubernetes/dashboard/releases/latest)
 
 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