fix typos in README.md
fix typos in README.md
samaitra/serf,samaitra/serf,jmptrader/serf,FollowMyDev/serf,mbrukman/serf,gnawhleinad/serf,curtiszimmerman/serf,mapuri/serf,yonglehou/serf,yonglehou/serf,hashicorp/serf,samaitra/serf,FollowMyDev/serf,gnawhleinad/serf,samaitra/serf,pmenglund/serf,curtiszimmerman/serf,samaitra/serf,hashicorp/serf,minhkiller/serf,mbrukman/serf,jmptrader/serf,dalehamel/serf,samaitra/serf,pmenglund/serf,gnawhleinad/serf,mbrukman/serf,yonglehou/serf,yonglehou/serf,FollowMyDev/serf,patrickviet/serf,jmptrader/serf,patrickviet/serf,curtiszimmerman/serf,gnawhleinad/serf,jmptrader/serf,mapuri/serf,minhkiller/serf,mapuri/serf,jmptrader/serf,mbrukman/serf,gnawhleinad/serf,hashicorp/serf,minhkiller/serf,hashicorp/serf,curtiszimmerman/serf,patrickviet/serf,dalehamel/serf,patrickviet/serf,jmptrader/serf,pmenglund/serf,hashicorp/serf,dalehamel/serf,minhkiller/serf,patrickviet/serf,mbrukman/serf,yonglehou/serf,minhkiller/serf,dalehamel/serf,pmenglund/serf,FollowMyDev/serf,dalehamel/serf,mapuri/serf,FollowMyDev/serf,mapuri/serf,gnawhleinad/serf,mbrukman/serf,dalehamel/serf,pmenglund/serf,FollowMyDev/serf,pmenglund/serf,curtiszimmerman/serf,mapuri/serf,minhkiller/serf,patrickviet/serf,curtiszimmerman/serf,yonglehou/serf