Adding ZSH Completions

https://github.com/apex/apex/blob/master/docs/autocomplete.md

https://stackoverflow.com/questions/23033502/what-is-the-bash-variable-comp-line-and-what-does-it-do

{
  "id": "473fed28-826a-43fc-8ed0-02cf7ccded71",
  "type": "code",
  "content": [
    {
      "type": "text",
      "content": "autoload -U +X bashcompinit \u0026\u0026 bashcompinit\ncomplete -C '/Users/m/dev/bin/gh' gh"
    }
  ],
  "language": "go"
}