Create CONTRIBUTING.md to help newbie contributors
Create CONTRIBUTING.md to help newbie contributors

argvk/jedis,amikey/jedis,RoyZeng/jedis,xuanyue202/jedis-byte-cluster,zts1993/jedis,adnear/jedis,xiexingguang/jedis,softliumin/jedis,dingmanyao/jedis,Raul-/jedis,kag0/jedis,Xephi/jedis,AnselQiao/jedis,zhaojinqiang/jedis,fengshao0907/jedis,lancevalour/jedis,xinster819/jedis,corydolphin/jedis,prosche/jedis,xetorthio/jedis,JungMinu/jedis,KengoTODA/jedis,sumit784/jedis,mosoft521/jedis,smagellan/jedis,yapei123/jedis,selfimprov/jedis,sazzad16/jedis,zhangyancoder/jedis,yangyunfei/jedis,nykolaslima/jedis,jvorhauer/jedis,mosoft521/jedis,aiyan2001/jedis,elijah513/jedis,rabbitcount/jedis,2bitoperations/jedis,StevenTsai/jedis,xetorthio/jedis,thinkbread/jedis,ystory/jedis,sazzad16/jedis,carlvine500/jedis,mbrukman/jedis,universsky/jedis,junho85/jedis,jiangtong1982/testProject,yapei123/jedis,xmbsn/jedis,iousin/jedis,MCGamerNetwork/jedis,adamweixuan/jedis,smagellan/jedis,lousama/jedis,hrqiang/jedis,wh007/jedis,cocosli/jedis,HeartSaVioR/jedis,RedisLabs/jedis,Rembau/jedis,fooljohnny/jedis,shanzejun9811/jedis,kschroeder/jedis,tsc-nemeses/jedis,Foxlik/jedis,RedisLabs/jedis,springning/jedis,zhoffice/jedis,mashuai/jedis,garyrussell/jedis,zts1993/jedis,zhouyinyan/jedis,HeartSaVioR/jedis,WangErXiao/jedis