Update Zigbee.md

Author: blakadder

Zigbee.md

@@ -2,7 +2,7 @@
 
 Zigbee2Tasmota is a lightweight Zigbee solution running on an ESP82xx Wi-Fi chip. Hence it is easier to deploy in your living room or around your home. It is largely inspired from [Zigbee2mqtt](#why-another-zigbee-project) but it's a complete rewrite to make it fit on an ESP82xx with 80kB of RAM and only 1MB of flash memory.
 
-> [!ATTENTION] This driver is still in early beta stage. There is no persistence and you will need to repair all zigbee devices after a Tasmota reboot.
+> [!WARNING] This driver is still in early beta stage. There is no persistence and you will need to repair all zigbee devices after a Tasmota reboot.
 
 ## Zigbee Introduction
 Before using Zigbee to Tasmota, you need to understand a few concepts. Here is a simplified comparison to the Wi-Fi equivalent (sort of).