Add some fancy badges

Author: shihanng

README.md

@@ -1,3 +1,8 @@
+![Travis (.org) branch](https://img.shields.io/travis/shihanng/iruby-docker/master.svg?style=popout)
+![Docker Cloud Automated build](https://img.shields.io/docker/cloud/automated/shihanng/iruby-docker.svg?style=popout)
+![Docker Cloud Build Status](https://img.shields.io/docker/cloud/build/shihanng/iruby-docker.svg?style=popout)
+[![](https://images.microbadger.com/badges/version/shihanng/iruby-docker.svg)](https://microbadger.com/images/shihanng/iruby-docker "Get your own version badge on microbadger.com")
+
 # iruby-docker
 
 iruby-docker is a community maintained Jupyter Docker Stack image