Add alternate links to Atom feeds

feeds.ts

@@ -20,6 +20,7 @@ export async function profileAtomFeed(
         <id>${articleId}</id>
         <title>${article.title}</title>
         <link href="${article.url}" />
+        <link rel="alternate" type="application/nostr+json" href="nostr:${article.naddr}">
         <updated>${isoDate(article.updatedAt)}</updated>
         <published>${isoDate(article.publishedAt)}</published>
         <summary>${article.summary}</summary>
@@ -34,6 +35,7 @@ export async function profileAtomFeed(
     <?xml version="1.0" encoding="utf-8"?>
     <feed xmlns="http://www.w3.org/2005/Atom">
       <title>${profile.name} on Nostr (Articles)</title>
+      <link rel="alternate" type="application/nostr+json" href="nostr:${profile.npub}">
       <id>${feedId}</id>
       <updated>${isoDate(lastUpdate)}</updated>
       <icon>${profile.avatarImageUrl}</icon>