GitHub-修改以下host-ip可加快访问速度
#GitHub START
207.97.227.239 github.com
204.232.175.94 gist.github.com
107.21.116.220 help.github.com
207.97.227.252 nodeload.github.com
107.22.3.110 status.github.com
204.232.175.78 training.github.com
207.97.227.243 www.github.com
204.232.175.90 github.com
#GitHub END