Docs: broken link to traefik example

[ottojo]

Documentation link

https://docs.tandoor.dev/install/docker/#traefik

Affected section

Installation

Other

No response

Issue description

The link to a traefik example here leads to 404: https://docs.tandoor.dev/install/docker/traefik.md

recipes/docs/install/docker.md

Line 81 in a01f86a

[this little example](traefik.md) might be for you.