Fix chess to white perspective, fix observation bug, add documentatio… #579

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
	---
	name: Tutorial tests

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	permissions:
	contents: read

	jobs:
	tutorial-test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10'] # '3.11' - broken due to numba
	tutorial: ['Tianshou', 'EnvironmentCreation', 'CleanRL'] # TODO: add back 'CleanRL' after SuperSuit is fixed
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies and run tutorials
	run: \|
	sudo apt-get install python3-opengl xvfb
	cd tutorials/${{ matrix.tutorial }}
	pip install -r requirements.txt
	pip uninstall -y pettingzoo
	pip install -e ../..
	for f in *.py; do xvfb-run -a -s "-screen 0 1024x768x24" python "$f"; done

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