message: docs: update left-nav
  Update left-nav toc.
  PR Close
diff: "title": "Browser Support",
  "tooltip": "Browser support and polyfills guide."
  },
  - {
  - "title": "Update to Version 13",
  - "tooltip": "Support to update your application to version 13",
  - "children": [
  {
  "url": "guide/update-to-latest-version",
  - "title": "Overview",
  - "tooltip": "Everything you need to know to update your application to version 13"
  - }
  - ]
  + "title": "Update to Version 13",
  + "tooltip": "Support to update your application to version 13"
  },
  {
  "url": "guide/deprecations",
  