Add fallback url #18

	name: CodeCov
	on: push
	jobs:
	run:
	runs-on: ubuntu-latest
	env:
	OS: ubuntu-latest
	PYTHON: '3.9'
	steps:
	- uses: actions/checkout@master
	- name: Setup Python
	uses: actions/setup-python@master
	with:
	python-version: 3.9
	- name: 'generate report'
	run: \|
	pip install -r requirements-test.txt
	pip install -e .
	coverage run -m pytest
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v1
	with:
	flags: unittests
	fail_ci_if_error: true

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