Adding note about beta docs (#42230)

## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see `contributing.md`

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

docs/getting-started.md

@@ -2,13 +2,13 @@
 description: Get started with Next.js in the official documentation, and learn more about all our features!
 ---
 
+> The beta version of Next.js 13 has been [publicly released](https://nextjs.org/blog/next-13), [read the new docs here](https://beta.nextjs.org/docs).
+
 # Getting Started
 
 Welcome to the Next.js documentation!
 
-If you're new to Next.js, we recommend starting with the [learn course](https://nextjs.org/learn/basics/create-nextjs-app).
-
-The interactive course with quizzes will guide you through everything you need to know to use Next.js.
+If you're new to Next.js, we recommend starting with the [learn course](https://nextjs.org/learn/basics/create-nextjs-app). The interactive course with quizzes will guide you through everything you need to know to use Next.js.
 
 If you have questions about anything related to Next.js, you're always welcome to ask our community on [GitHub Discussions](https://github.com/vercel/next.js/discussions).