update discord link

README.md

@@ -10,7 +10,7 @@ exo: Run your own AI cluster at home with everyday devices. Maintained by [exo l
 
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-[Homepage](https://github.com/exo-explore/exo) | [Documentation](https://github.com/exo-explore/exo) | [Discord](https://discord.gg/FGPsrrkd)
+[Homepage](https://github.com/exo-explore/exo) | [Documentation](https://github.com/exo-explore/exo) | [Discord](https://discord.gg/EUnjGpsmWw)
 
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