Add logo in README
Add logo in README

fracmak/ioredis,xuyanxiang/ioredis,phlip9/ioredis,paskakaska/ioredis,luin/ioredis,alsotang/ioredis,albin3/ioredis,ColmHally/ioredis,AlphaStaxLLC/ioredis,thorsteinsson/ioredis,luin/ioredis,pensierinmusica/ioredis,mtlima/ioredis,DynamicYield/ioredis,luin/ioredis,DynamicYield/ioredis,nswbmw/ioredis,dguo/ioredis,AVVS/ioredis,suprememoocow/ioredis