Add support for PGP keys on the h-card - can support an arbitrary number of keys, although I only have one

templates/hcard.hamlet

@@ -3,6 +3,11 @@
     <img .card-img-top.u-photo src=#{avatar} alt="Avatar for #{userFullName user}">
   <div .card-body>
     <h4 .card-title.p-name>#{userFullName user}
+    $forall key <- pgpKeys
+      <a .card-subtitle.u-key rel="me" href=@{routeFromPgp key}>
+        <i .fa.fa-key>
+        #{prettyPgp key}
+        <link rel="pgpkey" type="application/pgp-keys" href=@{routeFromPgp key}>
     <p .card-text.p-note .text-muted>#{userNote user}
     <a .card-link.u-email rel="me" href="mailto:#{userEmail user}">
       <i .fa.fa-envelope>