Update README.md #31

	name: CI

	on: [push]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- name: Setup Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Cache dependencies
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements-dev.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Install dev dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements-dev.txt
	- name: Run tests
	run: make tests

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