doc/rbd: elaborate on key-ref syntax (existing in S3Stream and new in NativeFormat)
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
I
Ilya Dryomov committed
c7fddec189e8c6eac08820b73ce44dbd795a28ae
Parent: e246fad
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>