Implement page structure for blog

src/blog/feeds.njk

@@ -0,0 +1,20 @@
+---
+layout: blog
+---
+
+{% renderFile "src/blog/feeds-stub.md" %}
+
+<h3>Garrett's RSS List</h3>
+
+<blockquote>
+This list is also available in the standard <a href="/assets/rss_opml.xml" download>OPML format</a>.
+</blockquote>
+
+{% for cat in collections.opmlByCategory %}
+    <h4 style="background-color: var(--c-font)">{{ cat.title }}</h4>
+    <ul>
+        {% for sub in cat.subs %}
+            <li><a href="{{ sub.xmlUrl }}" download>{{ sub.title }}</a></li>
+        {% endfor %}
+    </ul>
+{% endfor %}