Fix link to point to new docs location (#382)

docs/backup_restore/b_n_r-backup.en.md

@@ -49,7 +49,7 @@ This following script may be placed in `/etc/cron.daily/mailcow-backup` - do not
 #!/bin/sh
 
 # Backup mailcow data
-# https://mailcow.github.io/mailcow-dockerized-docs/b_n_r_backup/
+# https://mailcow.github.io/mailcow-dockerized-docs/backup_restore/b_n_r-backup/
 
 set -e
 
@@ -94,4 +94,4 @@ Do **not** rsync to a Samba share, you need to keep the correct permissions!
 To restore you'd simply need to run rsync the other way round and restart Docker to re-read the volumes. Run `docker-compose pull` and `docker-compose up -d`.
 
 If you are lucky Redis and MariaDB can automatically fix the inconsistent databases (if they _are_ inconsistent).
-In case of a corrupted database you'd need to use the helper script to restore the inconsistent elements. If a restore fails, try to extract the backups and copy the files back manually. Keep the file permissions!
+In case of a corrupted database you'd need to use the helper script to restore the inconsistent elements. If a restore fails, try to extract the backups and copy the files back manually. Keep the file permissions!