Fix DaprWorkflowClient injection and scope usage

Signed-off-by: Marc Duiker <marcduiker@users.noreply.github.com>

Author: marcduiker

sdkdocs/dotnet/content/en/dotnet-sdk-docs/dotnet-workflow/dotnet-workflowclient-usage.md

@@ -87,7 +87,7 @@ In an ASP.Net Core application, you can inject the `DaprWorkflowClient` into met
 
 ```csharp
 app.MapPost("/start", async (
-    DaprWorkflowClient daprWorkflowClient,
+    [FromServices] DaprWorkflowClient daprWorkflowClient,
     Order order
     ) => {
         var instanceId = await daprWorkflowClient.ScheduleNewWorkflowAsync(
@@ -105,7 +105,7 @@ app.MapPost("/start", async (
 To create a `DaprWorkflowClient` instance in a console app, retrieve it from the `ServiceProvider`:
 
 ```csharp
-await using var scope = host.Services.CreateAsyncScope();
+using var scope = host.Services.CreateAsyncScope();
 var daprWorkflowClient = scope.ServiceProvider.GetRequiredService<DaprWorkflowClient>();
 ```
 
@@ -177,4 +177,4 @@ public class OrderProcessingWorkflow : Workflow<OrderPayload, OrderResult>
 ## Next steps
 
 - [Learn more about Dapr workflow management operations]({{% ref dotnet-workflow-management-methods.md %}})
-- [Learn how to author workflows and activities]({{% ref howto-author-workflow.md %}})  
+- [Learn how to author workflows and activities]({{% ref howto-author-workflow.md %}})