Update README.md

try to improve wording

Author: mi-hol

README.md

@@ -24,7 +24,7 @@ This script does not use MQTT, it's based on webapi communication.
 - [Ahoy](https://github.com/lumapu/ahoy) - this script is developed with AHOY and therefore i recommend it
 - [OpenDTU](https://github.com/tbnobody/OpenDTU)
 - Hoymiles MI, HM, HMS and HMT-Series Inverter (--> all inverters that are supported by AHOY / OpenDTU)
-- The Hoymiles wireless devices, like HMS-xxxxW Series, are not supported
+-   **Note:** The Hoymiles inverts with build-in DTU devices communicating via WiFi, like HMS-xxxxW Series, **are not supported!**
 
 ### Support of battery powered Hoymiles Inverters
 With Version 1.28 and higher you can set various limits to support battery powered Hoymiles Inverters