This updates the docker-compose section with more usage instructions.
When I tried to setup my own knot using the provided docker-compose, I had to update the ownership of the directories to match the ones in the docker container, so I included this small instructions in the provided script.
Also the caddy profile was not documented, so I added a section about it.
I also added a small "Pushing code using SSH" section, with the required configuration on the client machines (to connect to the port exposed by the container)