Update footer.html

Author: shahmishal

_includes/footer.html

@@ -33,7 +33,7 @@
     <aside>
       <a href="https://x.com/swiftlang" rel="nofollow" title="Follow @SwiftLang on X"><i class="x"></i></a>
       <a href="https://bsky.app/profile/swift.org" rel="nofollow" title="Follow @swift.org on Bluesky"><i class="bluesky"></i></a>
-      <a href="https://mastodon.social/@swiftlang" rel="nofollow" title="Follow @swiftLang on Mastodon"><i class="mastodon"></i></a>
+      <a href="https://mastodon.social/@swiftlang" rel="me" title="Follow @swiftLang on Mastodon"><i class="mastodon"></i></a>
       <a href="/atom.xml" title="Subscribe to Site Updates"><i class="feed"></i></a>
     </aside>
   </div>