Cover more in the usage docs (#2208)
Cover more in the usage docs (#2208)

Commit history before merge:

* Cover more in the usage docs
* Minor fixes
* Even more corrections by Jelle
* Update docs/usage_and_configuration/the_basics.md

  Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
psf/black