Merge pull request #53 from jenkinsci/docker-stars

README: Replace DockerHub stars badge by GitHub ones

Author: oleg-nenashev

README.md

@@ -1,7 +1,7 @@
 # Docker image for Jenkins agents connected over SSH
 
 [![Join the chat at https://gitter.im/jenkinsci/docker](https://badges.gitter.im/jenkinsci/docker.svg)](https://gitter.im/jenkinsci/docker?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Docker Stars](https://img.shields.io/docker/stars/jenkins/ssh-agent.svg)](https://hub.docker.com/r/jenkins/ssh-agent/)
+[![GitHub stars](https://img.shields.io/github/stars/jenkinsci/docker-ssh-agent?label=GitHub%20stars)](https://github.com/jenkinsci/docker-ssh-agent)
 [![Docker Pulls](https://img.shields.io/docker/pulls/jenkins/ssh-agent.svg)](https://hub.docker.com/r/jenkins/ssh-agent/)
 [![GitHub release](https://img.shields.io/github/release/jenkinsci/docker-ssh-agent.svg?label=changelog)](https://github.com/jenkinsci/docker-ssh-agent/releases)