metadata service fix

Author: cjgronlund

articles/open-datasets/index.yml

@@ -6,9 +6,7 @@ summary: Azure Open Datasets is curated and cleansed data - including weather, c
 metadata:
   title: Open Datasets Documentation - Tutorials, API reference - Azure
   description: Azure Open Datasets is curated and cleansed data - including weather, census, and holidays - that you can use with minimal preparation to enrich ML models. 
-  services: machine-learning
-  ms.service: machine-learning
-  ms.subservice: data-science-vm
+  ms.service: open-datasets
   ms.topic: landing-page
   ms.collection: collection
   author: cjgronlund