Add docker build badge to main README for GMS docker image build
-# Data Hub [![Build Status](https://travis-ci.org/linkedin/WhereHows.svg?branch=datahub)](https://travis-ci.org/linkedin/WhereHows) [![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/linkedin/datahub)
+# Data Hub
+[![Build Status](https://travis-ci.org/linkedin/WhereHows.svg?branch=datahub)](https://travis-ci.org/linkedin/WhereHows)
+[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/linkedin/datahub)
+[![Docker Cloud Build Status](https://img.shields.io/docker/cloud/build/keremsahin/datahub-gms)](https://cloud.docker.com/repository/docker/keremsahin/datahub-gms/)
## Pre-requisites
Be sure to have JDK installed on your machine.
