Merge branch 'verify-mastodon' into 'master'

Verify link to Mastodon account

See merge request !136

themes/briar/layouts/partials/footer.html

@@ -18,7 +18,7 @@
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           </svg>
         </a>
-        <a href="https://fosstodon.org/@briar">
+        <a href="https://fosstodon.org/@briar" rel="me">
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