Update learn path in getting started and from cra docs (vercel#26104)

This PR updates the Learn path in the getting started and from Create React App docs. 

## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added

## 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.

## Documentation / Examples

- [x] Make sure the linting passes

docs/getting-started.md

@@ -6,7 +6,7 @@ description: Get started with Next.js in the official documentation, and learn m
 
 Welcome to the Next.js documentation!
 
-If you're new to Next.js we recommend that you start with the [learn course](https://nextjs.org/learn/basics/getting-started).
+If you're new to Next.js we recommend that you start 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.
 

docs/migrating/from-create-react-app.md

@@ -236,4 +236,4 @@ If you've ejected Create React App, here are some things to consider:
 
 ## Learn More
 
-You can learn more about Next.js by completing our [starter tutorial](https://nextjs.org/learn/basics/getting-started). If you have questions or if this guide didn't work for you, feel free to reach out to our community on [GitHub Discussions](https://github.com/vercel/next.js/discussions).
+You can learn more about Next.js by completing our [starter tutorial](https://nextjs.org/learn/basics/create-nextjs-app). If you have questions or if this guide didn't work for you, feel free to reach out to our community on [GitHub Discussions](https://github.com/vercel/next.js/discussions).