Update Discord invitation link

README.md

@@ -17,7 +17,7 @@
   <a href="https://github.com/sponsors/xt-sys/">
     <img alt="Sponsor" src="https://img.shields.io/badge/Sponsor-%E2%9D%A4-red?logo=GitHub">
   </a>
-  <a href="https://discord.com/invite/3zgjQDVmAe">
+  <a href="https://discord.com/invite/zBzJ5qMGX7">
     <img alt="Discord" src="https://img.shields.io/discord/723186294540206100?label=Chat">
   </a>
 </p>