Add Mastodon

index.html

@@ -139,6 +139,10 @@
         <a class="button button-reddit" href="#" target="_blank" rel="noopener"><img class="icon" src="icons/reddit.svg" alt="Reddit Logo">Reddit</a>
           <br>   
 
+        <!-- Mastodon -->
+        <a class="button button-mastodon" href="#" target="_blank" rel="noopener"><img class="icon" src="icons/mastodon.svg" alt="Mastodon Logo">Mastodon</a>
+          <br>           
+
         <!-- Medium -->
         <a class="button button-medium" href="#" target="_blank" rel="noopener"><img class="icon" src="icons/medium.svg" alt="Medium Logo">Medium</a>
           <br>