Update protocol.md

修改协议文件错误
Update protocol.md

修改协议文档
服务端冒烟测试通过

Signed-off-by: hurley25 <liuhuan1992@gmail.com>
Merge branch 'master' of github.com:hurley25/Wiidroid-II
Merge pull request #5 from hurley25/master

服务端冒烟测试通过