update

oadp-instance/README.md

@@ -3,10 +3,11 @@
 After OADP (OpenShift API for Data Protection) operator is installed, you can deploy OADP instance (DataProtectionApplication) in the same namespace, which defines a AWS s3 bucket as the backup location and run Velero application to perform the backup.
 
 ## Prerequisites
+
 1. OADP (OpenShift API for Data Protection) operator is installed
 2. The credential to access AWS s3 bucket is created as following pattern. Suggent use SealedSecret to encrypt it before commit to githup repos. If you change the secret name or key, the values of this helm chart should be updated accordingly.
 
-```
+```yaml
 kind: Secret
 apiVersion: v1
 metadata:
@@ -21,4 +22,5 @@ type: Opaque
 ```
 
 ## Usage
+
 For usage details, please check the manual [here](https://github.com/stakater-ab/handbook/blob/main/src/engineering/sre/backup-and-recovery.md). Additionally, this helm chart doesn't create the VolumeSnapshotClass because of varying cluster setup and requirements. You can use Restic to backup and restore PVCs. If you want to use Volumesnapshot for that purpose, you can create the VolumeSnapshotClass manually.