code: function extractTitle (markup, strip) {
    const matches = /<h1[^>]*>([^<]*)<\/h1>/.exec(markup);
  
    if (!matches) return markup;
  
    const result = {
      title: matches[1]
    };
  
    if (strip) result.body = markup.replace(matches[0], '').trim();
  
    return result;
  }
docs: Extracts title text from first <h1> found in rendered markup
  @param {String} markup
  @param {Boolean} strip - removes the first <h1> from the body when true
  @returns {title: String, <body: String>}
  @private