Update DCOS README for executing Integration Tests
Update DCOS README for executing Integration Tests

GoelDeepak/dcos,mesosphere-mergebot/dcos,amitaekbote/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,branden/dcos,surdy/dcos,mellenburg/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,dcos/dcos,surdy/dcos,branden/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,kensipe/dcos,mellenburg/dcos,dcos/dcos,surdy/dcos,mesosphere-mergebot/dcos,branden/dcos,mellenburg/dcos,GoelDeepak/dcos,dcos/dcos,mellenburg/dcos,branden/dcos,amitaekbote/dcos,kensipe/dcos,dcos/dcos,dcos/dcos,kensipe/dcos,amitaekbote/dcos,mesosphere-mergebot/dcos,amitaekbote/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/mergebot-test-dcos