Add a safe option as "re-using an existing /home partition"

[kikoucalou]

Looking on git "Issues", I found : " By the way, re-using an existing /home partition is not something well documented. It would also be very nice to have a small example of how to do this in the documentation (I am not completely confident that I am doing this right). "

As it may help end-users of "archinstall scripts to realise a safer install, perhaps, it would be possible for developpers to add a safe option as "re-using an existing /home partition" ?

Thanks