Update base.njk

Author: matthewtole

src/_includes/layouts/base.njk

@@ -49,6 +49,6 @@
         });
       });
     </script>
-    <a rel="me" href="https://mas.to/@matthewtole" style="display: none">Mastodon</a>
+    <a rel="me" href="https://hachyderm.io/@matthewtole" style="display: none">Mastodon</a>
   </body>
 </html>