Add docs for Arlec powerstrip

ACKNOWLEDGEMENTS.md

@@ -103,7 +103,7 @@ Further device support has been made with the assistance of users.  Please consi
 - [JanekSMC](https://github.com/JanekSMC) for assistance supporting Orion Smart Locks.
 - [RichardMawdsley](https://github.com/RichardMawdsley) for assistance supporting ElectriQ Airflex 15W heatpumps.
 - [fwelvering](https://github.com/fwelvering) for assistance supporting a second variant of W'eau pool heatpumps. 
-- [illuzn](https://github.com/illuzn) for contributing support for Kogan Tower Heaters.
+- [illuzn](https://github.com/illuzn) for contributing support for Kogan Tower Heaters and Arlec PB88UHA power strips.
 - [vnkorol](https://github.com/vnkorol) for assistance supporting 4-way power monitoring strip and Avatto roller blinds.
 - [OmegaKill](https://github.com/OmegaKill) for assistance supporting Be Cool heatpumps.
 - [djusHa](https://github.com/djusHa) for contributing support for essentials portable air purifier.

README.md

@@ -200,6 +200,7 @@ Other brands may work with the above configurations
 - MoesHouse smartplug with RGBW nightlight
 - Logicom Strippy 4 way power strip with USB
 - 4 way power monitoring strip
+- Arlec PB88UHA 4 way powerstrip with child lock
 
 - Simple switch - a switch only, can be a fallback for many other unsupported devices, to allow just power to be switched on/off.
 - Simple switch with timer - a single switch and timer, will probably work for a lot of smart switches that are not covered by the more advanced configs above.