How to: [Antigen](https://github.com/zsh-users/antigen)
Most of these plugins can be installed by adding `antigen bundle githubuser/reponame` to your .zshrc file. Antigen will handle cloning the plugin for you automatically the next time you start `zsh`. You can also add the plugin to a running ZSH with `antigen bundle githubuser/reponame` for testing before adding it to your `.zshrc`.