Usage
  $ ghpages

Options
  -p, --path    Path (directory to push; defaults to current directory)
  -r, --repo    Repository (GitHub username, GitHub username/repo, full repo URL)
  -d, --domain  Domain name (for `CNAME` to create in GitHub Pages branch)
  -h, --help    Show help

Examples
  $ ghpages
  $ ghpages cvan
  $ ghpages cvan/blog
  $ ghpages git@github.com:cvan/blog.git
  $ ghpages -r cvan/blog -d blog.cvan.io