Fixed an error in the docs #7

	name: Testing unify

	on: push

	jobs:
	black:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.9'
	- name: Install deps
	uses: knowsuchagency/poetry-install@v1
	env:
	POETRY_VIRTUALENVS_CREATE: false
	- name: Run black check
	run: poetry run black --check .
	flake8:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.9'
	- name: Install deps
	uses: knowsuchagency/poetry-install@v1
	env:
	POETRY_VIRTUALENVS_CREATE: false
	- name: Run flake8 check
	run: poetry run flake8 --count .
	mypy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.9'
	- name: Install deps
	uses: knowsuchagency/poetry-install@v1
	env:
	POETRY_VIRTUALENVS_CREATE: false
	- name: Run mypy check
	run: poetry run mypy --install-types --non-interactive .

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