update faq: we have in-file checkpoints now
update faq: we have in-file checkpoints now

note: until there is some means to list and extract the (partial) checkpoint
items, we do not need to talk about them.

RonnyPfannschmidt/borg,edgewood/borg,raxenak/borg,raxenak/borg,raxenak/borg,edgimar/borg,RonnyPfannschmidt/borg,edgimar/borg,edgimar/borg,edgewood/borg,RonnyPfannschmidt/borg,edgewood/borg,raxenak/borg,RonnyPfannschmidt/borg,RonnyPfannschmidt/borg,edgewood/borg,edgimar/borg