Fix readme badges #91

	name: Linters

	on:
	pull_request:
	branches:
	- main

	jobs:
	lint:
	name: Linters
	runs-on: ubuntu-latest
	steps:
	-
	uses: actions/checkout@v2
	-
	name: Set up Python 3.9
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	-
	name: Check cache
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: requirements-${{ hashFiles('requirements.txt') }}-${{ hashFiles('requirements-dev.txt') }}
	-
	name: Install dependencies
	run: python -m pip install --requirement requirements-dev.txt
	-
	name: flake8
	run: pflake8 .

	-
	name: isort
	run: isort --profile black --check-only .

	-
	name: black
	run: black --diff --check .
	-
	name: mypy
	run: mypy stable_gnn

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