docs: for PR #5063

ACKNOWLEDGEMENTS.md

@@ -953,3 +953,4 @@ Further device support has been made with the assistance of users. Please consid
 - [x409no1](https://github.com/x409no1) for contributing support for Trevi InnovAqua pool heat pump.
 - [denismilanovic](https://github.com/denismilanovic) for contributing support for Breville BAD358 dehumidifier.
 - [klobuczek](https://github.com/klobuczek) for contributing support for FRE1L4 water chiller.
+- [gergely-sallai](https://github.com/gergely-sallai) for contributing support for Holtop CDA-500t ERV.

DEVICES.md

@@ -416,6 +416,7 @@
 - Hoenofly Smart Amari ceiling fan with light
 - Hoenofly Smart Wood low profile ceiling fan with lights
 - Holmes SmartConnect Digital Tower Fan (36 and 40 inch variants)
+- Holtop CFA-500t Energy Recovery Ventilation system
 - Hombli 6-speed ceiling fan with RGBCW light
 - HomCom 6-speed tower fan
 - Homebase 12" oscillating fan