Create a Homebrew installer script

[bzon]

Reference: https://docs.brew.sh/How-to-Create-and-Maintain-a-Tap

[ddy86]

It's a good idea, but the command is so easy. curl -Lo /usr/local/bin/gitlabctl https://github.com/devopsctl/gitlabctl/releases/download/v0.3.0/gitlabctl-darwin-amd64;chmod +x /usr/local/bin/gitlabctl