examples: update instructions for create-strapi-app (#35288)

Not sure how you want to handle this, but the current instructions aren't compatible with the latest version of strapi and migration steps aren't super clear yet. It does work flawlessly with v3 of Strapi though.



## Bug

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

## Documentation / Examples

- [X ] Make sure the linting passes by running `yarn lint`

examples/cms-strapi/README.md

@@ -48,8 +48,8 @@ yarn create next-app --example cms-strapi cms-strapi-app
 Use the provided [Strapi template Next example](https://github.com/strapi/strapi-template-next-example) to run a pre-configured Strapi project locally. See the [Strapi template docs](https://strapi.io/documentation/developer-docs/latest/setup-deployment-guides/installation/templates.html#templates) for more information
 
 ```bash
-npx create-strapi-app my-project --template next-example --quickstart
-# or: yarn create strapi-app my-project --template next-example --quickstart
+npx create-strapi-app@3 my-project --template next-example --quickstart
+# or: yarn create strapi-app@3 my-project --template next-example --quickstart
 npm run develop # or: yarn develop
 ```