* define subsystems skeleton
* Create a blank section for each subsystem in the initial batch
* write out basics for most subsystems
* Update roadmap/implementors-guide/guide.md
clean up language
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
* ToC indentation
* clean up wording
* renaming block authorship (provisioning) to Provisioner
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>