added zenodo badge #45

	name: Test the package using Tox
	on: [push]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9]
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: recursive
	- name: setup python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest tox
	- name: run tox
	run: tox -e py

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