adding some comments to improve readibility
adding some comments to improve readibility

robbieyang/teamform-seed,RaymondWongCH/teamform-seed,wai2016/teamform-seed,RaymondWongCH/teamform-seed,poonvanessa/teamform-seed,poonvanessa/teamform-seed,wai2016/teamform-seed,p-wong1124/teamform-seed,p-wong1124/teamform-seed,robbieyang/teamform-seed