Update to link to 2nd edition #112

	name: Tests

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	test:
	name: Python ${{ matrix.python-version }}
	runs-on: ubuntu-latest
	strategy:
	fail-fast: true
	matrix:
	python-version: [3.8, 3.9, "3.10", 3.11]
	django-version: [32, 41, 42]
	exclude:
	- django-version: 32
	python-version: 3.11
	services:
	postgres:
	image: postgres:13
	ports:
	- 5432/tcp
	options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
	env:
	POSTGRES_USER: root
	POSTGRES_PASSWORD: treebeard
	POSTGRES_DB: treebeard
	mysql:
	image: mysql:8.0
	options: --health-cmd="mysqladmin ping" --health-interval 10s --health-timeout 5s --health-retries 5
	env:
	MYSQL_ROOT_PASSWORD: treebeard
	ports:
	- 3306/tcp
	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: \|
	python -m pip install --upgrade pip
	pip install tox
	- name: Run tests
	env:
	DATABASE_USER_POSTGRES: root
	DATABASE_USER_MYSQL: root
	DATABASE_PASSWORD: treebeard
	DATABASE_HOST: 127.0.0.1
	DATABASE_PORT_POSTGRES: ${{ job.services.postgres.ports[5432] }} # get randomly assigned published port
	DATABASE_PORT_MYSQL: ${{ job.services.mysql.ports[3306] }} # get randomly assigned published port
	run: \|
	tox -e "py-dj${{ matrix.django-version }}-sqlite"
	tox -e "py-dj${{ matrix.django-version }}-postgres"
	tox -e "py-dj${{ matrix.django-version }}-mysql"

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