Added Lorenzo to the contributors list.
Added Lorenzo to the contributors list.

WalterShe/predis,oswaldderiemaecker/predis,quangnguyen90/predis,SwelenFrance/predis,johnhelmuth/predis,nrk/predis,gopalindians/predis,mrkeng/predis,RudyJessop/predis,vend/predis,CloudSide/predis,stokes3452/predis,nguyenthaihan/predis,gencer/predis,dominics/predis,RedisLabs/predis,zhangyancoder/predis,channelgrabber/predis,lvbaosong/predis,protomouse/predis,SecureCloud-biz/predis,dzung2t/predis,moria/predis