Update README for project move.

* README: Correct clone URL.

Change-Id: If7f790d2a9352476fc634eba5784406e6cec43bb
Reviewed-on: https://review.openstack.org/18201
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins
1 file changed