Postgres-backup readme is misconfigured.

[je-bugshell]

Description:

In the readme: configuring-playbook-postgres-backup.md there are multiple options for configuring file paths related to the postgres backups. See excerpt below.

Name	Default value	Description
devture_postgres_base_path	"{{ matrix_base_data_path }}/postgres-backup"	Base path for postgres-backup. Also see devture_postgres_data_path

According to the description the variable devture_postgres_base_path sets the location for the postgres-db backups. However, it seems that this variable does not set the backup-path (as stated in the description), but rather the actual databases location.

There seems to be a mix-up with the devture_postgres_backup_base_path variable, which instead produced the results that I was expecting.

Proposed fix:

Update docs to for the following variable name:

Name	Default value	Description
devture_postgres_backup_base_path	"{{ matrix_base_data_path }}/postgres-backup"	Base path for postgres-backup. Also see devture_postgres_data_path