DOC Add contributors to release announcement.
DOC Add contributors to release announcement.

joequant/zipline,otmaneJai/Zipline,euri10/zipline,grundgruen/zipline,keir-rex/zipline,iamkingmaker/zipline,aajtodd/zipline,umuzungu/zipline,morrisonwudi/zipline,dkushner/zipline,MonoCloud/zipline,wubr2000/zipline,wilsonkichoi/zipline,aajtodd/zipline,enigmampc/catalyst,semio/zipline,quantopian/zipline,euri10/zipline,semio/zipline,chrjxj/zipline,DVegaCapital/zipline,cmorgan/zipline,otmaneJai/Zipline,florentchandelier/zipline,chrjxj/zipline,morrisonwudi/zipline,alphaBenj/zipline,bartosh/zipline,stkubr/zipline,humdings/zipline,florentchandelier/zipline,gwulfs/zipline,ChinaQuants/zipline,enigmampc/catalyst,StratsOn/zipline,wubr2000/zipline,stkubr/zipline,ronalcc/zipline,bartosh/zipline,nborggren/zipline,CDSFinance/zipline,YuepengGuo/zipline,AlirezaShahabi/zipline,dmitriz/zipline,DVegaCapital/zipline,kmather73/zipline,dmitriz/zipline,StratsOn/zipline,ronalcc/zipline,iamkingmaker/zipline,zhoulingjun/zipline,MonoCloud/zipline,Scapogo/zipline,jimgoo/zipline-fork,michaeljohnbennett/zipline,alphaBenj/zipline,dkushner/zipline,sketchytechky/zipline,humdings/zipline,sketchytechky/zipline,jimgoo/zipline-fork,cmorgan/zipline,nborggren/zipline,keir-rex/zipline,quantopian/zipline,umuzungu/zipline,Scapogo/zipline,grundgruen/zipline,gwulfs/zipline,wilsonkichoi/zipline,AlirezaShahabi/zipline,joequant/zipline,magne-max/zipline-ja,kmather73/zipline,YuepengGuo/zipline,jordancheah/zipline,michaeljohnbennett/zipline,zhoulingjun/zipline,jordancheah/zipline,CDSFinance/zipline,magne-max/zipline-ja,ChinaQuants/zipline