Replace overview, configure redirection

Author: MikeRayMSFT

.openpublishing.redirection.json

@@ -5693,6 +5693,11 @@
       "redirect_url": "/azure/azure-arc/data/release-notes",
       "redirect_document_id": false
     },
+    {
+      "source_path_from_root": "/articles/azure-arc/data/reference/overview.md",
+      "redirect_url": "/azure/azure-arc/data/reference/reference-az-arcdata",
+      "redirect_document_id": false
+    },
     {
       "source_path_from_root": "/articles/azure-arc/data/create-data-controller-using-k8s-native-tools.md",
       "redirect_url": "/azure/azure-arc/data/create-data-controller-using-kubernetes-native-tools",

articles/azure-arc/data/reference/overview.md

@@ -217,8 +217,8 @@ items:
     href: version-log.md
   - name: az arcdata extension
     items:
-    - name: Overview
-      href: ./reference/overview.md
+    - name: arcdata
+      href: ./reference/reference-az-arcdata.md
     - name: arcdata dc
       href: ./reference/reference-az-arcdata-dc.md
     - name: arcdata dc config