Add readthedocs config and slightly update Sphinx config #13

	name: "CI" # Note that this name appears in the README's badge
	on:
	push:
	branches:
	- main
	workflow_dispatch:
	pull_request:
	release:
	types: [published]
	jobs:
	run-tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version:
	- '3.8'
	- '3.9'
	- '3.10'
	- '3.11'
	- '3.12'
	- 'pypy-3.8'
	- 'pypy-3.9'
	- 'pypy-3.10'

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install tox tox-gh-actions
	- name: Test with tox
	run: tox

	release:
	name: Release django-csp
	if: github.event_name == 'release' && github.event.action == 'published'
	needs:
	- run-tests
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: 3.12
	- name: Install dependencies for package building only
	run: pip install build
	- name: Build package for upload to PyPI
	run: python -m build .
	- name: Upload the distribution to PyPI
	uses: pypa/gh-action-pypi-publish@v1.4.2
	with:
	user: __token__
	password: ${{ secrets.PYPI_API_TOKEN }}

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