github 因为网络问题导致下载项目或者clone项目时，下载过慢，遇见这种问题我们怎么解决呢？
Chrome 插件
chrome 搜索扩展插件-- GIthub?加速
安装完成后如下图展示可以看到加速和镜像两个内容
下载ZIP文件
可以直接点击加速下载zip 文件
SSH加速通道
How to use SSH channels
Configuring user profiles (~/.ssh/config)
Host github.com
HostName github.com
User git
IdentityFile Specify the path to the private key file used for key authentication
# Add the following
Host git.zhlh6.cn
HostName git.zhlh6.cn
User git
IdentityFile Using the secret key of github.com
Testing SSH Connections
ssh -T git@git.zhlh6.cn
# successful
You've successfully authenticated, but GitHub does not provide shell access
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