Update Discord invite link

Author: dangerworm

contact.html

@@ -104,7 +104,7 @@ <h2>Social Media</h2>
         </p>
         <p>
             <span class="fab fa-discord text-green"></span>&nbsp;
-            <a target="_blank" href="https://discord.gg/DrZ7B7q">Discord</a>
+            <a target="_blank" href="https://discord.gg/jKFXkTd">Discord</a>
         </p>
         <p>
             <span class="fab fa-facebook text-green"></span>&nbsp;