Update armbian's site in README

Author: amazingfate

README.md

@@ -1,6 +1,6 @@
 # Armbian images for Xiaomi Pad5 Pro
 [![image_build](https://github.com/amazingfate/armbian-xiaomi-elish/workflows/Build/badge.svg)](https://github.com/amazingfate/armbian-xiaomi-elish/actions/workflows/build.yml)
 
-This is now a community supported build.
+Armbian has supported xiaomi-elish officially: https://www.armbian.com/xiaomi-pad-5-pro/, you can download images from armbian official site. This repo is for bleeding not released images.
 
 Download: https://github.com/amazingfate/armbian-xiaomi-elish/releases/latest