Foboot v2.0.3 check should come after driver/udev

[CarlFK]

https://workshop.fomu.im/en/latest/requirements/index.html

For this workshop you will need:
    [The Fomu workshop files](https://workshop.fomu.im/en/latest/requirements/files.html#required-files)
    [The Fomu toolchain](https://workshop.fomu.im/en/latest/requirements/software.html#required-software)
    [A Fomu board](https://workshop.fomu.im/en/latest/requirements/hardware.html#required-hardware)
    [Set up drivers](https://workshop.fomu.im/en/latest/requirements/drivers.html#required-drivers)

Warning
Your Fomu should be running Foboot v2.0.3 or newer.

Those links take you to the same place as hitting Next at the bottom of each page. (good? not really...)

The really shouldn't be links. if anyone is expected to click, they probably won't navigate back.

So assuming they haven't gone to the required-drivers (thus udev), they can't check Foboot version. because the stuff isn't installed yet. (kinda bad)

I think it is easy enough to move the Foboot version stuff to its own page after required-drivers page.
if someone agrees, I'll take a crack at doing this. I won't be upset if someone else does it either.