add system assigned back in as an option

Signed-off-by: Hannah Hunter <[email protected]>

Author: hhunter-ms

articles/azure-functions/durable/durable-task-scheduler/durable-task-scheduler-auto-scaling-aca.md

@@ -30,7 +30,7 @@ You can set the autoscaler configuration via the Azure portal, a Bicep template,
 | maxConcurrentWorkItemsCount | The maximum concurrent work items dispatched as an event to your compute, such as telling your compute to run an orchestration. | 1 |
 | taskhubName | The name of the task hub connected to the scheduler. | taskhub-ID |
 | workItemType | The work item type that is being dispatched. Options include Orchestration, Activity, or Entity. | Orchestration |
-| Managed identity | The user assigned managed identity linked to the scheduler and task hub resource. Ensure the **Authenticate with a Managed Identity** checkbox is selected. | [email protected] |
+| Managed identity | The user assigned or system assigned managed identity linked to the scheduler and task hub resource. Ensure the **Authenticate with a Managed Identity** checkbox is selected. | [email protected] |
 
 # [Bicep](#tab/bicep)
 
@@ -64,7 +64,7 @@ scale: {
 | `maxConcurrentWorkItemsCount` | The maximum concurrent work items dispatched as an event to your compute, such as telling your compute to run an orchestration. | `1` |
 | `taskhubName` | The name of the task hub connected to the scheduler. | `myTaskHubName` |
 | `workItemType` | The work item type that is being dispatched. Options include Orchestration, Activity, or Entity. | `Orchestration` |
-| `identity` | The user assigned managed identity linked to the scheduler and task hub resource. | `[email protected]` |
+| `identity` | The user assigned or system assigned managed identity linked to the scheduler and task hub resource. | `[email protected]` |
 
 
 # [Azure CLI](#tab/cli)
@@ -89,7 +89,7 @@ az containerapp create \
 | `maxConcurrentWorkItemsCount` | The maximum concurrent work items dispatched as an event to your compute, such as telling your compute to run an orchestration. | `1` |
 | `taskhubName` | The name of the task hub connected to the scheduler. | `myTaskHubName` |
 | `workItemType` | The work item type that is being dispatched. Options include Orchestration, Activity, or Entity. | `Orchestration` |
-| `scale-rule-identity` | The user assigned managed identity linked to the scheduler and task hub resource. | `[email protected]` |
+| `scale-rule-identity` | The user assigned or system assigned managed identity linked to the scheduler and task hub resource. | `[email protected]` |
 
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