update readthedocs.yaml as per RTD requirements #247

	name: simulations

	on:
	push:
	pull_request:
	workflow_dispatch:

	# Run automatically every monday
	schedule:
	- cron: 1 12 * * 1

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 5
	matrix:
	python-version: [3.9]

	steps:
	- uses: actions/checkout@v1
	- 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 tox-gh-actions
	- name: Test with tox
	run: tox

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