Disclaimer for supermarket users

[damm]

After some research I figured out the problem with the supermarket and the backup and backup_lwrp cookbook. In earlier issues it was said that the cookbook could be renamend, which would be quite a good idea an shouldn't be a big thing. But that's not mine to decide. But since this isn't resolved ( at least for me) you should update the README for the supermarket. It looks to me that you maintain two versions of this cookbook, one for the supermarket and the one here on GIT. So why not just put in disclaimer or reminder that user who use the supermarket need to watch out that they should use backup_lwrp instead of backup to use its providers? This would've saved me some hours.

[damm]

Ref: https://bitbucket.org/scottmlikens/backup/issues/1/dsiclaimer-for-supermarket-users