README typo fix
README typo fix

gerhardberger/socket.io-p2p,hharnisc/socket.io-p2p,shaunstanislaus/socket.io-p2p,tomcartwrightuk/socket.io-p2p,tranphuoctien/socket.io-p2p,shaunstanislaus/socket.io-p2p,hharnisc/socket.io-p2p,socketio/socket.io-p2p,gerhardberger/socket.io-p2p,tomcartwrightuk/socket.io-p2p