[acr] preview wording + TOC node move + map image

Author: mmacy

articles/container-registry/TOC.yml

@@ -23,12 +23,12 @@
     href: ../service-fabric/service-fabric-tutorial-create-container-images.md
 - name: Concepts
   items:
-  - name: Geo-replication
+  - name: Container registry tiers
+    href: container-registry-skus.md
+  - name: Geo-replication (preview)
     href: container-registry-geo-replication.md
 - name: How-to guides
   items:
-  - name: Choose a registry SKU
-    href: container-registry-skus.md
   - name: Push and pull an image
     href: container-registry-get-started-docker-cli.md
   - name: View repositories

articles/container-registry/container-registry-geo-replication.md

@@ -25,6 +25,10 @@ Companies that want a local presence, or a hot backup, choose to run services fr
 
 Geo-replication enables an Azure Container Registry (ACR) to function as a single registry, serving multiple regions with multi-master regional registries.
 
+> [!IMPORTANT]
+> The geo-replication feature of Azure Container Registry is currently in **preview**, and [supplemental terms of use](/support/legal/preview-supplemental-terms/) apply. Some aspects of this feature may change prior to general availability (GA).
+>
+
 A geo-replicated registry provides the following benefits:
 
 * Single registry/image/tag names can be used across multiple regions