Docs about traefik_stack6 is a work in progress. Don't by shy to open an issue if you need help.
Based on traefik_stack5. It adds the ability to generate certificates using ACME by https://letsencrypt.org/.
You must understand how traefik_stack5 runs. Then, it will be easy for you to run traefik_stack6 on your own infra. I didn't test this on play-with-docker as ACME as rate limits.