Add documentation for SDLT #883

	name: Pull request
	on:
	pull_request:
	branches: [ master ]
	jobs:
	Lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Check formatting
	uses: "lgeiger/black-action@master"
	with:
	args: ". -l 79 --check"
	check-version:
	name: Check version
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	repository: ${{ github.event.pull_request.head.repo.full_name }}
	ref: ${{ github.event.pull_request.head.ref }}
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: Build changelog
	run: pip install yaml-changelog && make changelog
	- name: Preview changelog update
	run: ".github/get-changelog-diff.sh"
	- name: Check version number has been properly updated
	run: ".github/is-version-number-acceptable.sh"
	Test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	steps:
	- name: Checkout repo
	uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v1
	with:
	python-version: 3.9
	- name: Install Wheel and Pytest
	run: pip3 install wheel setuptools pytest==5.4.3
	- name: Install libyaml
	run: pip3 uninstall pyyaml && pip3 install pyyaml --no-cache-dir
	- name: Install package
	run: make install
	- name: Run tests
	run: make test
	env:
	POLICYENGINE_GITHUB_MICRODATA_AUTH_TOKEN: ${{ secrets.POLICYENGINE_GITHUB_MICRODATA_AUTH_TOKEN}}
	- name: Generate documentation
	if: matrix.os == 'ubuntu-latest'
	run: make documentation
	env:
	POLICYENGINE_GITHUB_MICRODATA_AUTH_TOKEN: ${{ secrets.POLICYENGINE_GITHUB_MICRODATA_AUTH_TOKEN}}

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