Use invite static link

Author: hugovk

index.html

@@ -11,7 +11,7 @@ <h1>PyData Helsinki</h1>
     </p>
     <ul>
          <li><a href="https://www.meetup.com/pydata-helsinki/">Meetup</a></li>
-        <li>Join us on <a href="https://discord.com/invite/FNvhyASZCx">the Helsinki Python Discord</a></li>
+        <li>Join us on <a href="https://helsinki-python.github.io/discord">the Helsinki Python Discord</a></li>
     </ul>
     <h2>Sponsors</h2>
     <ul>