M2: Improve contributing guidelines #45

	name: CI
	on:
	- push
	- pull_request
	jobs:
	test:
	strategy:
	matrix:
	include:
	- name: Lint
	command: bin/lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.11
	- name: Install dependencies
	run: \|
	python -m pip install -r requirements/dev.txt
	- name: Run ${{ matrix.name }}
	run: ${{ matrix.command }}

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