Updated README.md - How to run Dockercraft
Updated README.md - How to run Dockercraft

Signed-off-by: Adrien Duermael <4d10829f147c13c63c4579f5297a87efba1143a3@docker.com>

gdevillele/dockercraft,gdevillele/dockercraft,nyasukun/openstackcraft,docker/dockercraft,nyasukun/openstackcraft,johnmccabe/dockercraft,johnmccabe/dockercraft,gdevillele/dockercraft,stevesloka/kubecraft,nyasukun/openstackcraft,stevesloka/kubecraft,johnmccabe/dockercraft,stevesloka/kubecraft,docker/dockercraft