Clarified documentation. #144

	name: Build

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-22.04
	strategy:
	max-parallel: 4
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10']

	steps:
	# Should this step use a cache?
	#
	- name: Setup Compiler
	run: \|
	sudo apt-get -y install llvm clang libclang-dev gcc gfortran

	- uses: actions/checkout@v4
	with:
	fetch-depth: 1

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip

	# The clang binding version has to match the version in the Ubuntu being used.
	- name: Install Python libraries
	run: \|
	python -m pip install --upgrade pip
	pip install -e .
	pip install clang==14.0

	- name: Type check with mypy
	run: \|
	pip install -e .[dev]
	pip install pytest
	python -m mypy source tests

	- name: Code style check with flake8
	run: \|
	pip install -e .[dev]
	flake8 . --count --show-source --statistics

	- name: Unit tests with Pytest
	run: \|
	pip install .[tests]
	python -m pytest --cov=fab tests/unit_tests

	- name: System tests with Pytest
	run: \|
	pip install .[tests]
	python -m pytest --cov=fab tests/system_tests

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