Dockerize the project

## Requirements :

- [ ] Provide a `docker-compose` file to allow devs to run the project locally ;
- [ ] The project should be available on url `http://localhost` with only one command ('docker-compose up -d`) ;

## Notes :

This project only needs a web server. Check out [this article](https://dev.to/aminnairi/quick-web-server-with-nginx-on-docker-compose-43ol) help you build this stack.

Start with the requested docker-compose file and the linked Nginx-on-Docker-Compose article. Verify the project starts with `docker-compose up -d` and is available at `http://localhost`; completion means both requirements are satisfied.

Written by the indexing model from the issue text.