Readme POWER handling

Hello,

first of all nice code and project.

I have only one question:

Why are you writing: "PLEASE don't use the relay for 110V or 220V on power grid! Just for low voltage switching!"?

For me the specs are clear that board & relay are able to do AC 230V at 10A (i know the PCB design is not the best).

Did you have a bad experience?

Regards Markus

EDIT: Typo