docs: for PR #4921

ACKNOWLEDGEMENTS.md

@@ -771,3 +771,4 @@ Further device support has been made with the assistance of users. Please consid
 - [pro-logic](https://github.com/pro-logic) for contributing support for Eglo ceiling fan with light, which was merged with the non-light variant.
 - [ludook](https://github.com/ludook) for contributing support for Beok BAC-009 smart knob zigbee thermostat.
 - [haywoodmarx](https://github.com/haywoodmarx) for contributing support for Kogan KASMWEKFITEA fitted electric blanket.
+- [nicholasng99](https://github.com/nicholasng99) for contributing support for City Energy L10WFE gas water heater.

DEVICES.md

@@ -201,6 +201,7 @@
 - Arçelik AHPH-MM series combo air-water heat pump
 - Axen KS-100W/EN8BP combo heat pump (rebranded as Arielli)
 - Chiltrix CX50 combo heat pump
+- City Energy L10WFE gas water heater
 - Deakon EVI DC inverter heat pump
 - EMS Thermal 200L domestic heat pump hot water system
 - Envirosun ES330M9 hot water system