Update how-to-label-images.md

Author: j-martens

articles/machine-learning/how-to-label-images.md

@@ -10,7 +10,7 @@ ms.date: 04/09/2020
 
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-# Tag images in a labeling project
+# Tag images in a labeling project (preview)
 
 After your project administrator [creates a labeling project](https://docs.microsoft.com/azure/machine-learning/how-to-create-labeling-projects#create-a-labeling-project) in Azure Machine Learning, you can use the labeling tool (public preview) to rapidly prepare data for a Machine Learning project. This article describes: