Update/improve implementation; add annotations, doctests, and README … #2

	name: lint-test-cover-docs
	on:
	push
	jobs:
	lint_test_cover_docs:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
	name: "Python ${{ matrix.python-version }}"
	steps:
	- uses: actions/checkout@v4
	- name: Install Python.
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	architecture: x64
	- name: Lint and test module.
	run: \|
	pip install -U .[lint,test]
	python -m pylint parsial # Check against linting rules.
	python -m pytest # Run tests.
	python src/parsial/parsial.py -v # Run tests via execution.
	- name: Publish coverage results.
	run: \|
	pip install -U .[coveralls]
	python -m coveralls --service=github # Submit to coveralls.
	if: matrix.python-version == '3.11'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
	- name: Test auto-generation of documentation.
	run: \|
	pip install -U .[docs]
	cd docs && sphinx-apidoc -f -E --templatedir=_templates -o _source .. && make html && cd ..

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