Update tutorial-migrate-physical-virtual-machines.md

Corrected typo (drop down)

Author: PMEds28

articles/migrate/tutorial-migrate-physical-virtual-machines.md

@@ -207,7 +207,7 @@ Now, select machines for migration.
 
 8. In **Target settings**, select the subscription, and target region to which you'll migrate, and specify the resource group in which the Azure VMs will reside after migration.
 9. In **Virtual Network**, select the Azure VNet/subnet to which the Azure VMs will be joined after migration.   
-10. In  **Cache storage account**, keep the default option to use the cache storage account that is automatically created for the project. Use the drop down if you'd like to specify a different storage account to use as the cache storage account for replication. <br/>
+10. In  **Cache storage account**, keep the default option to use the cache storage account that is automatically created for the project. Use the dropdown if you'd like to specify a different storage account to use as the cache storage account for replication. <br/>
     >[!NOTE]
     > - If you selected private endpoint as the connectivity method for the Azure Migrate project, grant the Recovery Services vault access to the cache storage account. [**Learn more**](migrate-servers-to-azure-using-private-link.md#grant-access-permissions-to-the-recovery-services-vault)
     > - To replicate using ExpressRoute with private peering, create a private endpoint for the cache storage account. [**Learn more**](migrate-servers-to-azure-using-private-link.md#create-a-private-endpoint-for-the-storage-account-1)