Update README.md

[enboig]

No description provided.

[RogerHardiman]

Thanks for the Pull Request.

I would need you to make a few changes before I can add it.
It would be good if it say something like "On Raspberry Pi OS Version XYZ (from Date/Month/year) you need these commands....
(with the edits you had)

And then say "On older copies of Raspbian, you need these commands...
(and list the original commands as they currently are)

This is just to help users that have old OS versions and are not able to upgrade the OS easily
(eg systems already deployed)

thanks