(docs/tutorial) add tutorial instructions; #88

	name: Sphinx build

	on:
	push:
	branches: # include master and release branches
	- 'release/*'

	jobs:
	build:
	runs-on: ubuntu-22.04
	permissions:
	contents: write
	#runs-on: self-hosted
	env:
	AGENT_TOOLSDIRECTORY: /usr/local/bin/
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Set up Python environment
	uses: actions/setup-python@v3
	with:
	python-version: 3.9
	- name: Update pip
	run: \|
	python -m pip install --upgrade pip
	pip install wheel
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Install the package your documenting together with its dependencies.
	run: \|
	pip install --no-build-isolation .
	- name: Install the building dependencies.
	# With higher version of docutils bullet lists does not work
	run: \|
	pip install sphinx furo autodocsumm
	pip install sphinx-multiversion
	# Build documentation for each release branch in a directory named after the branch.
	- name: Build the sphinx documentation for all branches and store them in the _build/html directory.
	run: \|
	cd docs
	git fetch
	git pull
	sphinx-multiversion . _build/html
	- name: Extract branch name
	id: extract-branch
	run: echo "::set-output name=branch_name::$(echo ${GITHUB_REF#refs/heads/} \| tr / _)"

	- name: Deploy
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: docs/_build/html
	#if: ${{! github.ref == 'refs/heads/master'}}
	destination_dir: pages

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