Added general content blocks

src/components/markdoc/blocks/general/FootnoteList.astro

@@ -0,0 +1,23 @@
+---
+import Node from '@/components/markdoc/Node.astro'
+import type { Footnote } from '@/lib/markdoc/types'
+
+type Props = { footnotes: Footnote[] }
+const { footnotes } = Astro.props
+---
+
+{footnotes.length > 0 && (
+  <section class="footnotes">
+    <h2 class="footnotes__title">Notes</h2>
+    <ol>
+      {footnotes.map((footnote) => (
+        <li id={`fn-${footnote.n}`}>
+          <Node node={footnote.children} />{' '}
+          <a href={`#fnref-${footnote.n}`} class="footnotes__back" aria-label="Back to text">
+            ↩
+          </a>
+        </li>
+      ))}
+    </ol>
+  </section>
+)}