Update request documentation Xol PCB

[neptunus0001]

https://github.com/ruiqimao/VoronStuff/tree/main/Xol_PCB

In chapter: Pinout

I think it would be of value to update the table to something like:

[warpedscale]

@roykrikke you wrote B1 on PCB for Motor B2, just FYI.