Add ability to document container in markdown

[mrputtepuh]

With the use of the config and the output from commands, etc, you can add the ability to also document the container in markdown

This would be useful for me as I serve centrally managed build containers and use a wiki to show the tools and versions

Today I create the markdown in scripts during build

[loosebazooka]

I'm not sure what this means, but I'm willing to review a PR if you would like to add this feature.