Update readme

Author: amazingfate

README.md

@@ -1,4 +1,4 @@
-# workflow to build live iso for rk3588
+# Live iso for rk3588 based on debian live project
 [![image_build](https://github.com/amazingfate/rk3588-live-iso/workflows/Build/badge.svg)](https://github.com/amazingfate/rk3588-live-iso/actions/workflows/build.yml)
 
 # Live iso is using legacy 5.10 kernel packaged by armbian.