fix docstring of internal func _traverse_diagonally #42

	name: Tests

	on:
	push:
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12"]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	pip install pip -U
	pip install .
	- name: Install test dependencies
	run: pip install .[test]
	- name: Execute tests
	run: coverage run --source rportion -m pytest
	- name: Upload coverage
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	pip install coveralls
	coveralls --service=github

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