docs: for PR #5139

ACKNOWLEDGEMENTS.md

@@ -836,3 +836,4 @@ Further device support has been made with the assistance of users. Please consid
 - [EnO33](https://github.com/EnO33) for contributing support for Intex PureSpa inflatable spa.
 - [vanyasvl](https://github.com/vanyasvl) for contributing support for Afyeev 32A 7kW EV charger.
 - [Flechaa](https://github.com/Flechaa) for contributing support for HTW IX75B air conditioner.
+- [n4dwxihyehyes2](https://github.com/n4dwxihyehyes2) for contributing support for WS2812 based Christmas lights.

DEVICES.md

@@ -955,6 +955,7 @@ of device.
 - V Jules.V SK17 galaxy projector
 - Xinled XLD-CL002 RGBCW lightbulb
 - WF520D dual dimmer touchpanel
+- WS2812 based LED Christmas lights
 
 ### Covers