code: function markdown(options) {
    return new Remarkable(extend({
      breaks: false,
      html: true,
      langPrefix: 'lang-',
      linkify: true,
      typographer: false,
      xhtmlOut: false
    }, options));
  }
docs: Shared settings for remarkable
  
  @param {Object} `options`
  @return {Object}
  @api private