I don't like relying on GitHub to serve *normalize.css* for two reasons:
1. It sends a tracking cookie
2. I don't trust that the stylesheet will not change arbitrarily and
negatively impact my site
Since we're pre-rendering the page now, we can't select a song quote on
the server side. Instead, we'll use JavaScript to fetch the song quotes
as a JSON document and choose a random song from there. The JSON
document is converted from the YAML source at build time with a simple
Python script.