Update README.md

Author: dceejay

README.md

@@ -3,7 +3,7 @@
 [![Greenkeeper badge](https://badges.greenkeeper.io/node-red/node-red-docker.svg)](https://greenkeeper.io/)
 [![Build Status](https://travis-ci.org/node-red/node-red-docker.svg?branch=master)](https://travis-ci.org/node-red/node-red-docker)
 [![DockerHub Pull](https://img.shields.io/docker/pulls/nodered/node-red.svg)](https://hub.docker.com/r/nodered/node-red/)
-[![DockerHub Stars](https://img.shields.io/docker/stars/nodered/node-red.svg?maxAge=2592000)](https://hub.docker.com/r/nodered/node-red/)
+[![DockerHub Stars](https://img.shields.io/docker/stars/nodered/node-red.svg?maxAge=2592000)](https://hub.docker.com/r/nodered/node-red/) 
 
 This project describes some of the many ways Node-RED can be run under Docker and has support for multiple architectures (amd64, arm32v6, arm32v7, arm64v8, i386 and s390x).
 Some basic familiarity with Docker and the [Docker Command Line](https://docs.docker.com/engine/reference/commandline/cli/) is assumed.