[Doc] Add cloud run tracking doc (microsoft#3250)

# Description

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# All Promptflow Contribution checklist:
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### Testing Guidelines
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docs/cloud/azureai/tracing/index.md

@@ -22,9 +22,8 @@ pf config set trace.destination=azureml://subscriptions/<subscription-id>/resour
 
 Fill in with your own subscription ID, resource group name, workspace or project name, and all is ready now. You can make LLM calls, run LLM application or execute your flow with `pf flow test` or `pf run create`, you will see an Azure portal URL link in the console:
 
-```console
-You can view the traces in cloud from Azure portal: https://ml.azure.com/prompts/trace/run/<run-name>/details?wsid=/subscriptions/<subscription-id>/resourceGroups/<resource-group-name>/providers/Microsoft.MachineLearningServices/workspaces/<workspace-or-project-name>
-```
+![trace-ui-portal](../../../media/cloud/azureai/tracing/portal_url.png)
+
 Click the link to view the traces in Azure portal, and feel free to share it with your team members.
 
 ![trace-ui-portal](../../../media/trace/trace-ui-portal-demo.gif)
@@ -94,3 +93,11 @@ pf config set trace.destination=none
 ```
 
 Then no traces will be logged to neither local nor cloud.
+
+
+```{toctree}
+:maxdepth: 1
+:hidden:
+
+run_tracking
+```

docs/cloud/azureai/tracing/run_tracking.md

@@ -0,0 +1,32 @@
+# Run tracking
+
+:::{admonition} Experimental feature
+This is an experimental feature, and may change at any time. Learn [more](../../../how-to-guides/faq.md#stable-vs-experimental).
+:::
+
+After you follow [tracing](./index.md) to set trace destination to cloud and successfully run a flow locally, there will be a run record in Azure ML workspace or Azure AI project. You can view the traces in cloud from Azure portal, and feel free to share it with your team members.
+
+## Portal tracing run list
+
+Except clicking the portal URL link in the console, you can also find the result in the tab `Tracing` -> `Runs`:
+
+![img](../../../media/cloud/azureai/tracing/run_tracking_list.png)
+
+As a result, you will not be able to find these local-to-cloud runs in the tab `Prompt flow` -> `Runs`.
+
+## View with pfazure commands
+
+You can also view the details of the run record with most of the [pfazure run commands](../../../reference/pfazure-command-reference.md#pfazure-run).
+
+## Compare with a cloud run
+
+|  | Local-to-cloud run | Cloud run |
+|---|---|---|
+| Compute | Local | Automatic runtime/Compute instance |
+| Run tracking timing | After the run is completed locally | Real-time on cloud |
+
+## Next steps
+
+Learn more about:
+- [Run prompt flow in Azure AI](../run-promptflow-in-azure-ai.md)
+- [CLI reference: pfazure](../../../reference/pfazure-command-reference.md)