docs: expand lint scope batch2 (12 files)

docs/BACKUP_SETUP.md

@@ -53,13 +53,13 @@ crontab -e
 
 Додати рядок:
 
-```
+```cron
 0 * * * * /usr/local/bin/backup_daarion.sh >> /var/log/daarion-backup.log 2>&1
 ```
 
 Або для запуску щодня о 2:00 ночі:
 
-```
+```cron
 0 2 * * * /usr/local/bin/backup_daarion.sh >> /var/log/daarion-backup.log 2>&1
 ```
 
@@ -184,4 +184,3 @@ df -h /var/backups
 ```bash
 find /var/backups/daarion -type f -mtime +7 -delete
 ```
-