The course content is spread across seven slide decks, which makes it hard
to point someone at a specific rule. standards.md distils it into ~45
normative rules, one linkable heading each, published at standards.html.

Exposition is deliberately left in the slides: the page holds only rules
you would assert at someone, including ones no tool can check.

Also folds in seven issues that never made it into the slides: #40 (the
underscore convention, with the public-API-only amendment to breaking
changes), #37 (cost of dependencies), #36 (long signatures), #35
(inappropriate intimacy), #34 (comments say why), #33/#26 (deprecation),
#22 (changelog).

The review-python-package skill audits a repository against the page and
links each finding to the rule it breaks.

standards.md:
- Keyword-only arguments: rewritten around positional count — one or two
  for the data, config after the `*`, three+ is the smell. Now Recommended.
- Changelog demoted to Nice; hand curation is real work, so point at
  towncrier/git-cliff instead of prescribing it.
- One return type: show the function, so the None path is visible.
- New rules: Tag every release, Type checking in CI.
- Publish from a tag or a release, showing the `on: push: tags` trigger.
- Test the matrix: CI is not free; test only what you claim to support.
- Docs: name Quarto, Great Docs and zensical as alternatives; replace the
  robots.txt note with access-controlled Pages on GitHub Enterprise.
- Makefile becomes A task runner, covering `just` for Windows.
- Fix checkout@v3 -> v4 and a backwards `min`/`max` in the clip example.

review-python-package skill:
- Use Glob/Read/Grep instead of `ls`, `cat` and piped `grep` — the reviewer
  may be on Windows with no POSIX shell. Table-escaped pipes had also made
  the mutable-default pattern match nothing.
- `uvx ruff`, and say so when the repo has no ruff config.

The DHI python template migrated from a Makefile to a justfile, so the
course now leads with just: cross-platform single binary, self-documenting
via just --list. make is kept as a footnote.

- Cut exposition from the eleven multi-paragraph rules; every rule is now
  the rule plus its reason, no essays. All 45 anchors unchanged.
- Fix the One return type example: the comment claimed a None path the code
  does not have.
- Align requires-python (>=3.11) with the DHI template and with the CI
  matrix example, which previously contradicted it.
- justfile excerpt in 03_testing was not runnable: check depended on a
  doctest recipe that was elided, and dropped the windows-shell line the
  cross-platform claim rests on.