040000 tree 6a53af3ffb28e6319efa1b57bee7d0c35f3e269e	getting-started
040000 tree 3aed60938b381781599a73439aab4a5f2af9ef02	upgrading
040000 tree 7f56d5c8f6fbcdd56b2a225b9585f0482b7698d0	whitelist