Update the pre-commit specification with better comments

[bhazelton]

Description

Some small pre-commit improvements (mostly better comments) and some other minor cleanup.

Motivation and Context

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Reference simulation update or replacement
• [ ] Documentation change (documentation changes only)
• [ ] Version change
• [x] Build or continuous integration change

Checklist:

For all pull requests:

• [x] I have read the contribution guide.
• [x] My code follows the code style of this project.

Build or continuous integration change checklist:

• [ ] If required or optional dependencies have changed (including version numbers), I have updated the readme to reflect this.
• [ ] If this is a new CI setup, I have added the associated badge to the readme and to references/make_index.py (if appropriate).

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (dec944d) to head (bcdc4d7).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #484 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 11 11 Lines 2159 2159 ========================================= Hits 2159 2159 ```

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