Some command description improvements, mostly to describe the (optional) plot arguments.
The first plot location argument is optional. Alternatively, it refers to the plot on which the user is currently located.
### Submitter Checklist
- [X] Make sure you are opening from a topic branch (**/feature/fix/docs/ branch** (right side)) and not your main branch.
- [X] Ensure that the pull request title represents the desired changelog entry.
- [X] New public fields and methods are annotated with `@since TODO`.
- [X] I read and followed the [contribution guidelines](https://github.com/IntellectualSites/.github/blob/main/CONTRIBUTING.md).
Overview
Fixes #108
Description
Some command description improvements, mostly to describe the (optional) plot arguments.