message: remove googlebot noindex from index.html
diff: <script>
  // Dynamically, pre-emptively, add `noindex`, which will be removed when the doc is ready and valid
  - var tag = document.createElement('meta'); tag.name = 'googlebot'; tag.content = 'noindex';
  - document.head.appendChild(tag);
  - tag = document.createElement('meta'); tag.name = 'robots'; tag.content = 'noindex';
  + var tag = document.createElement('meta'); tag.name = 'robots'; tag.content = 'noindex';
  document.head.appendChild(tag);
  </script>
  