docs: function buildFonts(conf, undertaker) {
  
    const fontSrc = path.join(conf.themeConfig.root, conf.themeConfig.fonts.src, '**', '*.{eot,ttf,woff,woff2,otf,svg}');
    const fontDest = path.join(conf.themeConfig.root, conf.themeConfig.fonts.dest);
  
    return undertaker.src(fontSrc)
      .pipe(undertaker.dest(fontDest));
  
  }