Move older Desktop release notes to a new page

Signed-off-by: Usha Mandya <usha.mandya@docker.com>

_data/toc.yaml

@@ -1190,10 +1190,12 @@ manuals:
           title: Disk utilization
         - path: /docker-for-mac/troubleshoot/
           title: Logs and troubleshooting
-        - path: /docker-for-mac/release-notes/
-          title: Release notes
         - path: /docker-for-mac/apple-silicon/
           title: Apple silicon
+        - path: /docker-for-mac/release-notes/
+          title: Release notes
+        - path: /docker-for-mac/previous-versions/
+          title: Previous versions
     - sectiontitle: Windows
       section:
         - path: /docker-for-windows/install/
@@ -1204,10 +1206,12 @@ manuals:
           title: Networking
         - path: /docker-for-windows/troubleshoot/
           title: Logs and troubleshooting
-        - path: /docker-for-windows/release-notes/
-          title: Release notes
         - path: /docker-for-windows/wsl/
           title: Docker Desktop WSL 2 backend
+        - path: /docker-for-windows/release-notes/
+          title: Release notes
+        - path: /docker-for-windows/previous-versions/
+          title: Previous versions
     - path: /desktop/dashboard/
       title: Dashboard
     - path: /desktop/dev-environments/