update README

README.md

@@ -16,6 +16,7 @@ The custom script :
   - copy & compress the entire system
   - extract informations from your system (packages list, crontab, partition table, etc)
   - can dump MySQL database(s)
+  - can dump MariaDB database(s)
   - can dump PostgreSQL database(s)
 
 All files are then send it to a custom Proxmox Backup Server.
@@ -84,6 +85,8 @@ backup_path_exclude:
   - cache/
 
 backup_mysql_enabled: true
+backup_mariadb_enabled: true
+backup_pgsql_enabled: true
 
 backup_cron_minute: 30
 backup_cron_hour: 5