装了半天brew 、一直卡在这里
HEAD is now at 8f3a80b56 Merge pull request #4653 from Homebrew/dependabot/bundler/docs/github-pages-190 fatal: unable to access 'https://github.com/Homebrew/brew/': LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54
后来才意识到iterm终端没有梯子
所以找了个办法
https://github.com/mrdulin/blog/issues/18
修改zsh的代理
