docs: for PR #3942

ACKNOWLEDGEMENTS.md

@@ -1114,3 +1114,4 @@ Further device support has been made with the assistance of users. Please consid
 - [sajtdavid](https://github.com/sajtdavid) for contributing support for CO2v1 carbon dioxide sensor.
 - [dermocles9308](https://github.com/dermocles9308) for assisting with support for Tongou QCB2-100 3 phase circuit breaker.
 - [bvweerd](https://github.com/bvweerd) for contributing improvements to Fararo pet feeder.
+- [dtaylor7](https://github.com/dtaylor7) for contributing support for eTowel Mini04 plus towel rail thermostat.

DEVICES.md

@@ -24,6 +24,7 @@
 - Ecostrad iQ ceramic radiator
 - Ecostrad iQ heating element
 - Essentials Smart Home electric bathroom heater
+- eTowel Mini04 plus towel rail thermostat
 - Eurom Alutherm 1000,1500,2000,2500 heaters
 - Eurom Hot-Shot 2000 heaters
 - Eurom Mon Soleil 300,600,800, 350,601,720 and 300,450,720 Verre heaters