oauth and backup notes (#12)

README.md

@@ -24,8 +24,11 @@ kubectl exec -it pod/superset-postgresql-0 -- bash
 pg_restore -c -U superset -F t -d superset /tmp/db.tar
 ```
 
+# DB backups
+Should be found in superset-bastion.superset.eqiad1.wikimedia.cloud:/home/rook/db-backup-superset/
+
 # Upgrade notes
-The OAuth role won't update on an upgrade. However the Alpha role and sql_lab roles (Of which OAuth is largely the union of) may change. Looking for differences between OAuth and the union of Alpha and sql_lab roles may be the solution to new permissions problems.
+The OAuth role won't update on an upgrade. However the Alpha role and sql_lab roles may change. If a permissions problem manifests following an upgrade, looking for differences between the current and former Alpha and sql_lab roles may show a permission that can be added to OAuth to solve the issue.
 
 
 # Minikube