Update arquillian-cube-docker groupId in README
Update arquillian-cube-docker groupId in README

lordofthejars/arquillian-cube,mikesir87/arquillian-cube,lordofthejars/arquillian-cube,spolti/arquillian-cube,AndyGee/arquillian-cube,spolti/arquillian-cube,mikesir87/arquillian-cube,AndyGee/arquillian-cube,lordofthejars/arquillian-cube,AndyGee/arquillian-cube,spolti/arquillian-cube,mikesir87/arquillian-cube