fix: expired discord link

README.md

@@ -16,7 +16,7 @@ Maxun lets you train a robot in 2 minutes and scrape the web on auto-pilot. Web
 
 <p align="center">
     <a href="https://maxun-website.vercel.app/"><b>Website</b></a> |
-    <a href="https://discord.com/invite/NFhWDCdb"><b>Discord</b></a> |
+    <a href="https://discord.gg/5GbPjBUkws"><b>Discord</b></a> |
     <a href="https://x.com/maxun_io"><b>Twitter</b></a> |
     <a href="https://docs.google.com/forms/d/e/1FAIpQLSdbD2uhqC4sbg4eLZ9qrFbyrfkXZ2XsI6dQ0USRCQNZNn5pzg/viewform"><b>Join Maxun Cloud</b></a> | 
     <a href="https://www.youtube.com/@MaxunOSS"><b>Watch Tutorials</b></a>