Adding CITATION.cff file #54

	name: Test package

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.6, 3.7, 3.8, 3.9]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	- name: Install package
	run: \|
	pip install -e .
	- name: Check format with isort
	run: \|
	pip install isort
	isort -c opendrop/**.py
	- name: Check format with black
	run: \|
	pip install black
	black . --check --diff
	- name: Lint with flake8
	run: \|
	pip install flake8
	flake8 . --count --show-source --statistics
	- name: Lint with pylint
	run: \|
	pip install pylint
	pylint --rcfile=setup.cfg opendrop
	- name: Test with pytest
	run: \|
	pip install pytest
	pytest

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