This allow you to run `docker-compose up` in the backend directory to run the whole backend in a docker. by default the port is set to 4000
Co-authored-by: Debucquoy <debucqquoy.anthony@gmail.com> Reviewed-on: PGL/Clyde#29 Co-authored-by: Anthony Debucquoy <debucquoy.anthony@gmail.com> Co-committed-by: Anthony Debucquoy <debucquoy.anthony@gmail.com>