Add Controller Type options in the README

[SaintSkeeta]

Can we have a list of the 'controller type' options (line 2 in the config) listed in the README here?

Maybe there's somewhere to already see them (so my apologies if that's a stupid request)... but from what I can see in the current README, there's:-
1 - default Vita value
3 - Windows Remote Play client

If there's a list to these, or known other values, can you please mention them in the README?
Thanks

[zenaro147]

Apparently the value can go up to 4..

But don't ask me what each value means 😅