Failed to connect to raw.githubusercontent.com port 443

安装SwitchHosts ， 添加hosts如下：

199.232.68.133 raw.githubusercontent.com
199.232.68.133 user-images.githubusercontent.com
199.232.68.133 avatars2.githubusercontent.com
199.232.68.133 avatars1.githubusercontent.com

Mac 环境安装并配置终端神器 oh-my-zsh

https://a1049145827.github.io/2019/05/15/Mac-%E7%8E%AF%E5%A2%83%E5%AE%89%E8%A3%85%E5%B9%B6%E9%85%8D%E7%BD%AE%E7%BB%88%E7%AB%AF%E7%A5%9E%E5%99%A8-oh-my-zsh/