Docs for PR #3016

ACKNOWLEDGEMENTS.md

@@ -858,3 +858,4 @@ Further device support has been made with the assistance of users. Please consid
 - [madrani79](https://github.com/madrani79) for assisting with support for Steigen Solar Pro drying rack.
 - [daanjh](https://github.com/daanjh) for contributing support for Petree Cube litter box.
 - [kbullet](https://github.com/kbullet) for contributing support for CT-1203 dual clamp meter.
+- [Kevin-0u](https://github.com/Kevin-0u) for contributing support for Drexma WiStat thermostat.

DEVICES.md

@@ -196,6 +196,7 @@
 - BHT-002-GABW thermostat _(some compatible with GALW, others subtly different)_
 - Brade MC6 thermostat _(rebadged as many different brands)_
 - Dr Heater DR-008 electric radiant floor thermostat
+- Drexma WiStat ET7AW thermostat
 - DunWore F60 floor heating thermostat
 - EARU Electronic K6H-3A-W thermostat
 - ETOP-FCU thermostat (Jaga JRT-100TW)