docs: for PR #3839

Author: make-all

ACKNOWLEDGEMENTS.md

@@ -1097,3 +1097,4 @@ Further device support has been made with the assistance of users. Please consid
 - [smeegoan](https://github.com/smeegoan) for contributing support for GoSund SP211 power monitoring dual smartplug.
 - [colin-nolan](https://github.com/colin-nolan) for contributing improvements to Catit Pixi smart feeder.
 - [flow-c](https://github.com/flow-c) for contributing support for Mi-Heat TH11 thermostat.
+- [kjpg99](https://github.com/kjpg99) for contributing improvements to Klarta Stor 2 and Forste 4 purifiers, and Polish translations.