doc: add dual navigation buttons and cleanup some docstrings #2153

	name: Check long description for PyPI

	on:
	pull_request:
	branches:
	- main
	- feature/**

	permissions:
	contents: read

	jobs:
	twine-check:
	name: Check long description
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
	- name: Set up Python
	uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
	with:
	python-version: '3.x'
	- name: Install wheel
	run: python -m pip install --user --upgrade wheel
	- name: Install twine
	run: python -m pip install --user --upgrade twine
	- name: Install setuptools
	run: python -m pip install --user --upgrade setuptools
	- name: Build a binary wheel and a source tarball
	run: python setup.py sdist bdist_wheel
	- name: Check that long description will render correctly on PyPI.
	run: twine check dist/*

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