Because the index page for the portfolio template wasn't named `index.html` the server was not able to find it when requesting the preview for the page. The file `home.html` had to be renamed to `index.html` and all files including a link to the index page had to be adjusted to this change.
users import our resource via the storage.googleapis.com domain, and rather
suggest they access our resources via the simpler https://code.getmdl.io/thing.
Nothing has changed about where the content lives, it's still stored in the
same GCS buckets as before so the old links keep working as before indefinitely.
