[DRAFT] Docs update: accumulated typos identified during onboarding

[krivard]

Overview

Taking advantage of a pass through the onboarding and other documentation to identify and fix typos. Will remain draft until I'm no longer primarily reading-focused.

What problem does this address?

Minor legibility of documentation

What did you change?

No functional changes

Documentation

Draft:TBD

Make sure to update relevant aspects of the documentation.

Tasks

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1. Update the release notes: reference the PR and related issues.
2. Update relevant Data Source jinja templates (see docs/data_sources/templates).
3. Update relevant table or source description metadata (see src/metadata).
4. Review and update any other aspects of the documentation that might be affected by this PR.

Testing

How did you make sure this worked? How can a reviewer verify this?

Draft:TBD

To-do list

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1. ~~~If updating analyses or data processing functions: make sure to update or write data validation tests (e.g. test_minmax_rows()).~~~
2. Run make pytest-coverage locally to ensure that the merge queue will accept your PR.
3. Review the PR yourself and call out any questions or issues you have.
4. ~~~For minor ETL changes or data additions, once make pytest-coverage passes, make sure you have a fresh full PUDL DB downloaded locally, materialize new/changed assets and all their downstream assets and run relevant data validation tests using pytest and --live-dbs.~~~
5. ~~~For bigger ETL or data changes run the full ETL locally and then run the data validations using make pytest-validate.~~~
6. ~~~Alternatively, run the build-deploy-pudl GitHub Action manually.~~~

[e-belfer]

@krivard Going to pre-emptively tag myself on review for this one, love fixing typos. Thanks for initiating these fixes! Just nudge when you're ready for an actual review.