(AzureCXP) fixes MicrosoftDocs/azure-docs#106951

Adding Isolated pricing tier to automatic backups in Automatic vs Custom backup sections. Since automatic backup is supported for ASE as mentioned in the above Note section in the same article

Author: Venkateshdodda-MSFT

articles/app-service/manage-backup.md

@@ -27,7 +27,7 @@ There are two types of backups in App Service. Automatic backups made for your a
 
 |Feature|Automatic backups | Custom backups |
 |-|-|-|
-| Pricing tiers | **Basic**, **Standard**, **Premium**. | **Basic**, **Standard**, **Premium**, **Isolated**. |
+| Pricing tiers | **Basic**, **Standard**, **Premium**, **Isolated**. | **Basic**, **Standard**, **Premium**, **Isolated**. |
 | Configuration required | No. | Yes. |
 | Backup size | 30 GB. | 10 GB, 4 GB of which can be the linked database. |
 | Linked database | Not backed up. | The following linked databases can be backed up: [SQL Database](/azure/azure-sql/database/), [Azure Database for MySQL](../mysql/index.yml), [Azure Database for PostgreSQL](../postgresql/index.yml), [MySQL in-app](https://azure.microsoft.com/blog/mysql-in-app-preview-app-service/). |