Update Manual Steps in Getting Started guide (#35898)
Update Manual Steps in Getting Started guide (#35898)



This PR add necessary information to the Manual Section to add directories such as `pages` and `public`.

## Bug

- [x] Related issues linked using fixes #29479 
- [ ] 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.
- [ ] Errors have helpful link attached, see `contributing.md`

## Documentation / Examples

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

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