Update how-to-enable-data-collection.md

Author: jiaochenlu

articles/machine-learning/v1/how-to-enable-data-collection.md

@@ -12,7 +12,7 @@ ms.date: 08/16/2022
 ms.topic: how-to
 ms.custom: UpdateFrequency5, data4ml, sdkv1, event-tier1-build-2022
 ---
-# Collect data from models in production
+# Collect data from models in production (preview)
 
 [!INCLUDE [sdk v1](../../../includes/machine-learning-sdk-v1.md)]
 
@@ -28,6 +28,9 @@ Once collection is enabled, the data you collect helps you:
 
 * Retrain your model with the collected data.
 
+>[!NOTE]
+> The data collection feature is currently in preview, any preview features are not recommended for production workloads.
+
 ## What is collected and where it goes
 
 The following data can be collected: