[Reference feedback]: az dataprotection backup-instance initialize-backupconfig | missing examples

### Type of issue

Other (describe below)

### Reference command name

az dataprotection backup-instance initialize-backupconfig

### Request to engineering
Please add an example for blob storage containers, specifically "how to chain the commands `az dataprotection backup-instance initialize-backupconfig` and `az dataprotection backup-instance initialize` when setting up vaulted backups for blob storage containers."

### Feedback

### Type of issue

Missing information

### Feedback

The issues mentioned in https://github.com/Azure/azure-cli-extensions/issues/7499 can be avoided in the future by providing guidance on how to chain the commands `az dataprotection backup-instance initialize-backupconfig` and `az dataprotection backup-instance initialize` when setting up vaulted backups for blob storage containers.

The current docs mention
```
--backup-configuration
Backup configuration for backup. Use this parameter to configure protection for AzureKubernetesService.
```

The docs could mention how to generate the backup-configuration for blob containers. The fact that AzureKubernetesService are mentioned explicitly suggests to the reader that this parameter is not relevant for other use-cases.

### Page URL

https://learn.microsoft.com/en-us/cli/azure/dataprotection/backup-instance?view=azure-cli-latest#az-dataprotection-backup-instance-initialize-backupconfig

### Page URL

https://learn.microsoft.com/en-us/cli/azure/dataprotection/backup-instance?view=azure-cli-latest#az-dataprotection-backup-instance-initialize-backupconfig

### Content source URL

https://github.com/MicrosoftDocs/azure-docs-cli/blob/main/latest/docs-ref-autogen/dataprotection/backup-instance.yml

### Author

_No response_

### Document Id

0e8af423-3d1b-3189-e74e-a471afb9d414