Update README and centered line fix/test #28

	# This workflow will install Python dependencies, run tests and lint with a
	# variety of Python versions
	#
	# In addition, code coverage is reported to Coveralls
	#
	# For more information see:
	# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python

	name: Python package

	on: [push]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12"]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f tests/requirements.txt ]; then pip install -r tests/requirements.txt; fi
	- name: Check code
	run: \|
	make check
	- name: Test with pytest
	run: \|
	PYTHONPATH=src coverage run -m pytest
	coverage lcov
	- name: Code Coverage
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}
	path-to-lcov: coverage.lcov

Provide feedback