add readthedocs configuration file #6

	name: Regression Tests

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

	jobs:

	lint-flake8:
	runs-on: ubuntu-latest
	name: flake8
	strategy:
	fail-fast: false
	matrix:
	python-version: [3.9]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{matrix.python-version}}
	uses: actions/setup-python@v2
	with:
	python-version: ${{matrix.python-version}}

	- name: flake8
	continue-on-error: true
	run: \|
	pip install flake8
	flake8

	tests:

	name: Python ${{matrix.python-version}}
	runs-on: ubuntu-20.04

	strategy:
	fail-fast: false
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10']

	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 Python testing dependencies
	run: \|
	pip install tox tox-gh-actions

	- name: Install Icarus Verilog
	run: \|
	sudo apt install -y --no-install-recommends iverilog

	- name: Test
	run: \|
	tox

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