Dataset documentation improvements (#3012)

* example printout improvements

* added BN graph creation

* updated tests var names & added one subtest

* typos & improved formatting

* updated Graph & Dataset docco

* typo fix

* fix code-in-comment syntax

* fix code-in-comment syntax 2

* fix code-in-comment syntax - ellipses

* fix code-in-comment syntax - sort print loop output

* blacked

* ruff fixes

* Poetry 2.0.0 pyproject.toml file

* move to PEP621 (Poetry 2.0.0) pyproject.toml

* require poetry 2.0.0

* require poetry 2.0.0

* add in requirement for poetry-plugin-export

* change from --sync to sync command

* further pyproject.toml format updates

* add poetry plugin to requirements-poetry.in

* fix pre-commit poetry version to 2.0.0

* remove testing artifact

* update license to 2025

* add me to contributors

* remove outdated --check arg

* typo

* test add back in precommit args

* test remove precommit args

* match ruff version to pre-commit autoupdate PR #3026; add back in --check

* re-remove --check

* add David to CONTRIBUTORS

* ruff in pyproject.toml to match pre-commit

* updates for David's comments

* fix Dataset docc ReST formatting

.readthedocs.yaml

@@ -1,7 +1,7 @@
 ---
 # https://docs.readthedocs.io/en/stable/config-file/v2.html
 version: 2
-# NOTE: not builing epub because epub does not know how to handle .ico files
+# NOTE: not building epub because epub does not know how to handle .ico files
 # which results in a warning which causes the build to fail due to
 # `sphinx.fail_on_warning`
 # https://github.com/sphinx-doc/sphinx/issues/10350