Add an example to show how to leverage key prefixes.
Add an example to show how to leverage key prefixes.

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