Update README.md

Author: khoi

README.md

@@ -1,6 +1,6 @@
 # Supacode
 
-A macOS app for running multiple coding agents in parallel, powered by [GhosttyKit](https://github.com/ghostty-org/ghostty).
+A macOS app for running multiple coding agents in parallel, powered by [Ghostty](https://github.com/ghostty-org/ghostty).
 
 ## Requirements