Configuration files for self-hosted Tangled knot

Actually use my fork of knot-docker in the git submodule

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.gitmodules
··· 1 1 [submodule "knot-docker"] 2 2 path = knot-docker 3 - url = git@tangled.sh:tangled.sh/knot-docker 3 + url = ssh://knot.ionchy.ca:2222/ionchy.ca/knot-docker