Configuration files for self-hosted Tangled knot

Add build cleanup to README

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README.md
··· 14 14 3. Ensure `repositories` and `server` are owned by `www-data` 15 15 with `chown www-data:www-data repositories server` 16 16 4. Edit `docker-compose.yml` with appropriate `KNOT_SERVER_HOSTNAME` and `KNOT_SERVER_OWNER` 17 - 4. Create Docker container with `docker-compose up -d` 18 - 5. Knot is now ready for reverse proxy from `KNOT_SERVER_HOSTNAME:443` to local port 5555 17 + 5. Create Docker container with `docker-compose up -d` 18 + 6. Knot is now ready for reverse proxy from `KNOT_SERVER_HOSTNAME:443` to local port 5555 19 19 (knot verification will not work over HTTP port 80!) 20 + 7. [Optional] Remove Docker build image with `docker image prune` 21 + and untag parent image with `docker rmi alpine:latest` 20 22 21 23 ## Repository troubleshooting 22 24