fixed a typo in the example code
fixed a typo in the example code

mosoft521/socket.io,mosoft521/socket.io,kakalong/socket.io,denghongcai/socket.io,Automattic/socket.io,josuevera/tc,datjandra/socket.io,nkzawa/socket.io,CxRes/socket.io,Automattic/socket.io,l3dlp/socket.io,chapuzzo/socket.io,jondubois/socket.io,DanCard0/ionic-chat-server,SimenB/socket.io,l3dlp/socket.io,kissio/kiss.io,gavin-lai/socket.io,ahmed-masud/socket.io,Nibbler999/socket.io,omaracrystal/Darkroom_PlayArea,socketio/socket.io,socketio/socket.io