Validate Initial Setup

For me, the Initial Setup work very well.

- [ ] Add section **Requirement**
- docker (maybe with docker-compose)

Maybe the initial Setup don't work on Windows... I'm on Linux.

Don't hesitate to ask me any questions to execute the Initial Setup on Windows/Linux/Mac Os to complete the README for a simple start!

- [ ] Add in the readme Initial Setup for Mac Os if different
- [ ] Add in the readme Initial Setup for Windows if different

Start with the repository's README and follow the documented Docker initial setup on Linux, then check whether the steps differ on Windows or macOS. Done means the README has a clear initial setup section, including any docker-compose requirements and platform-specific instructions; the issue does not name additional files or tests.

Written by the indexing model from the issue text.