Add a tutorial introduction. #12

	name: "Check Docs"

	on:
	- workflow_dispatch
	- pull_request

	jobs:
	check-docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.11
	uses: actions/setup-python@v5
	with:
	python-version: '3.11'
	- name: Install dependencies and local packages
	run: python -m pip install sphinx pydata-sphinx-theme
	- name: Build HTML documentation with Sphinx
	run: make html SPHINXOPTS="-W --keep-going -n"
	working-directory: docs
	- uses: actions/upload-artifact@v4
	with:
	name: documentation
	path: docs/build/html
	retention-days: 7

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