update supported systems

[forkymcforkface]

I would suggest adding pi400 and pi500

Supported Systems

Compatibility Matrix

System	RPi 3/Zero 2	RPi 4/400	RPi 5/500	Supported Format

[rtomasa]

The problem is that I have mixed reports from different people saying that Pi400/500 work and not work. Since I don't have such models for testing, I'm not sure if it is a real bug, or people are doing wrong things. I'll be ending up purchasing both models to test by myself. Only once I confirm that they are really working, I will update the hardware requirements section and comp matrix as well.