code: def usage(title, message, tutorial_message, tutorial, css_path=CSS_PATH):
      
      env = Environment()
      env.loader = FileSystemLoader(osp.join(CONFDIR_PATH, 'templates'))
      usage = env.get_template("usage.html")
      return usage.render(css_path=css_path, title=title, intro_message=message,
                          tutorial_message=tutorial_message, tutorial=tutorial)
docs: Print a usage message on the rich text view