docs: for PR #5612

Author: make-all

ACKNOWLEDGEMENTS.md

@@ -909,3 +909,4 @@ Further device support has been made with the assistance of users. Please consid
 - [christhementalist](https://github.com/christhementalist) for contributing support for Goldair GPCV405 convection heater.
 - [adfhogan](https://github.com/adfhogan) for contributing support for Aqua Plus APAIO270 water heater.
 - [ffais](https://github.com/ffais) for contributing support for Joekol dual pump watering system.
+- [jmlankford](https://github.com/jmlankford) for contributing support for Lumary D1 downlight.