Document use of docker container

[Peter9192]

Also include

• How to mount directories
• Maybe change the configuration to not write in a temporary directory?

[Peter9192]

Perhaps we could also base our docker image on

https://jupyter-docker-stacks.readthedocs.io/en/latest/using/selecting.html#jupyter-r-notebook

[Peter9192]

https://jupyter-docker-stacks.readthedocs.io/en/latest/using/recipes.html#using-mamba-install-or-pip-install-in-a-child-docker-image

Update base instead of installing new base env like before https://stackoverflow.com/a/43873901

[sverhoeven]

Fixed in #170