update news in readme for cwise add (buggy...) conversion runs to completion now
update news in readme for cwise add (buggy...) conversion runs to completion now

hughperkins/cuda-on-cl,hughperkins/cuda-on-cl,hughperkins/coriander,hughperkins/cuda-on-cl,hughperkins/coriander,hughperkins/coriander,hughperkins/coriander,hughperkins/cuda-on-cl