code: func CompareAgainstMasterBranch() error {
  	// Get the current branch, open a browser
  	// to the change...
  	// The first thing we need is the `git` branch
  	cmd := exec.Command("git", "rev-parse", "--abbrev-ref", "HEAD")
  	var stdout, stderr bytes.Buffer
  	cmd.Stdout = &stdout
  	cmd.Stderr = &stderr
  	err := cmd.Run()
  	if err != nil {
  		return err
  	}
  	stdOutResult := strings.TrimSpace(string(stdout.Bytes()))
  	githubURL := fmt.Sprintf("https://github.com/mweagle/Sparta/compare/master...%s", stdOutResult)
  	return browser.OpenURL(githubURL)
  }
docs: // CompareAgainstMasterBranch is a convenience function to show the comparisons
  // of the current pushed branch against the master branch