  function prepareHtml() {
    var htmlLang = options.html.type;
    var inputFilename = fileMap.html[htmlLang]();
    var outputFilename = fileMap.html[htmlLang](options.html.file);
    // HTML files require templating through marked.js so add `true` param
    return getTemplateFile(inputFilename, outputFilename, true);
  }