Add WeChatWiFi in documentation
Add WeChatWiFi in documentation

Dufy/wechatpy,mruse/wechatpy,navcat/wechatpy,messense/wechatpy,Luckyseal/wechatpy,cloverstd/wechatpy,EaseCloud/wechatpy,cloverstd/wechatpy,hunter007/wechatpy,navcat/wechatpy,chenjiancan/wechatpy,hunter007/wechatpy,wechatpy/wechatpy,Luckyseal/wechatpy,zhaoqz/wechatpy,mruse/wechatpy,zaihui/wechatpy,jxtech/wechatpy,zaihui/wechatpy,chenjiancan/wechatpy,Dufy/wechatpy,Luckyseal/wechatpy,EaseCloud/wechatpy,zhaoqz/wechatpy