Update TOC and landing page for ingestion from Data Factory

Author: rcdun

articles/operator-insights/TOC.yml

@@ -40,7 +40,7 @@
   items:
   - name: Set up an ingestion agent for uploading data
     href: set-up-ingestion-agent.md
-  - name: Use Azure Data Factory for Ingestion
+  - name: Use Azure Data Factory for ingestion
     href: ingestion-with-data-factory.md
   - name: Use Azure Operator Insights Data Product dashboards
     href: dashboards-use.md

articles/operator-insights/index.yml

@@ -48,6 +48,8 @@ landingContent:
         links:
           - text: Set up the Azure Operator Insights ingestion agent
             url: set-up-ingestion-agent.md
+          - text: Use Azure Data Factory to ingest data
+            url: ingestion-with-data-factory.md
 
   # Card
   - title: Upload data to Azure Operator Insights