Update readme - release links and fix badge #563

	name: Workflow for basic tests
	on:
	push:
	paths:
	- 'minegauler/**'
	- 'tests/**'
	- '.github/**'
	- 'requirements.txt'
	pull_request:
	branches: [dev]
	env:
	DISPLAY: ":0"
	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master

	- name: Setup Python
	uses: actions/setup-python@master
	with:
	python-version: "3.8"

	- name: Install Python requirements
	run: \|
	pip install wheel
	pip install -r requirements-dev.txt

	- name: Set up X-server
	run: \|
	sudo apt-get install -y xvfb libxkbcommon-x11-0
	Xvfb :0 &

	- name: Run MUT
	run: python -m pytest tests/mut/

	- name: Run IT
	run: python -m pytest tests/it/

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