update readme
update readme

GDSys/socket.io-client-swift,nghialv/socket.io-client-swift,princesuke/socket.io-client-swift,nuan-nuan/Socket.IO-Client-Swift,takeshineshiro/socket.io-client-swift,akio46/socket.io-client-swift,akio46/socket.io-client-swift,nuan-nuan/Socket.IO-Client-Swift,imjerrybao/socket.io-client-swift,KevinMartin/socket.io-client-swift,nuan-nuan/Socket.IO-Client-Swift,othonbraga/Socket.IO-Client-Swift,webstersx/socket.io-client-swift,codingrhythm/socket.io-client-swift,lonely8rain/socket.io-client-swift,lonely8rain/socket.io-client-swift,Gaantz/Socket.IO-Client-Swift,sstadelman/Socket.IO-Client-Swift,WeBest/socket.io-client-swift,WeBest/socket.io-client-swift,KevinMartin/socket.io-client-swift,GDSys/socket.io-client-swift,Gaantz/Socket.IO-Client-Swift,othonbraga/Socket.IO-Client-Swift,lightsprint09/socket.io-client-swift,codingrhythm/socket.io-client-swift,othonbraga/Socket.IO-Client-Swift,GDSys/socket.io-client-swift,nghialv/socket.io-client-swift,webstersx/socket.io-client-swift,lonely8rain/socket.io-client-swift,visualarts/socket.io-client-swift,yuByte/socket.io-client-swift,lightsprint09/socket.io-client-swift,codingrhythm/socket.io-client-swift,webstersx/socket.io-client-swift,sstadelman/Socket.IO-Client-Swift,WeBest/socket.io-client-swift,akio46/socket.io-client-swift,sstadelman/Socket.IO-Client-Swift,KevinMartin/socket.io-client-swift,visualarts/socket.io-client-swift,yuByte/socket.io-client-swift,nuan-nuan/socket.io-client-swift-1,nghialv/socket.io-client-swift,imjerrybao/socket.io-client-swift,visualarts/socket.io-client-swift,takeshineshiro/socket.io-client-swift,princesuke/socket.io-client-swift,yuByte/socket.io-client-swift,imjerrybao/socket.io-client-swift,Gaantz/Socket.IO-Client-Swift,othonbraga/Socket.IO-Client-Swift,takeshineshiro/socket.io-client-swift,princesuke/socket.io-client-swift,nuan-nuan/socket.io-client-swift-1,nuan-nuan/socket.io-client-swift-1