CONTRIBUTING.md: Improve translation hints a bit #8

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Python package

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build-with-distro-pkgs:

	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y python3-pytest python3-numpy python3-pygame python3-pytest-cov python3-coverage python3-polib
	- name: Test with pytest
	run: \|
	PYTHONPATH=. py.test-3 -v

	build-with-pypi-pkgs-pygame1:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.9", "3.10", "3.11"]

	steps:

	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	echo 'man-db man-db/auto-update boolean false' \| sudo debconf-set-selections
	sudo apt-get update
	sudo apt-get install -y libsdl1.2-dev libsdl-ttf2.0-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libportmidi-dev libpng-dev libjpeg-dev
	pip3 install pytest numpy pygame polib
	- name: Test with pytest
	run: \|
	locale -a
	python3 --version \|\| python --version
	PYTHONPATH=. LC_ALL=C.UTF-8 pytest -v

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