Make Atom feeds discoverable via <link>
If I go to someone's profile like https://pleroma.soykaf.com/users/lain/ it would be useful if there was a <link> in <head> to the corresponding Atom feed. Like:
<head>
[...]
<link href="https://pleroma.soykaf.com/users/lain/feed.atom" type="application/atom+xml" rel="alternate" title="lain's Atom feed" />
</head>
That way browsers and news readers that don't have WebFinger support can still discover the feed