Update README.md #29

	name: Screenshot comparison

	on:
	push:
	branches:
	- "*"
	pull_request:
	branches:
	- "*"

	jobs:
	check-screenshot:
	name: Check Screenshot
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Install node
	uses: actions/setup-node@v4
	with:
	node-version: "21.x"
	- name: Install Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"
	architecture: "x64"
	- name: Install dependencies
	run: \|
	pip install --upgrade pip
	pip install --upgrade jupyterlab
	pip install --upgrade voila
	pip install --upgrade voila-osscar-template
	pip install -e .
	pip install --upgrade selenium
	pip install --upgrade Pillow
	pip install --upgrade pytest

	- name: Run the voila server
	run: \|
	voila --template=osscar --enable_nbextensions=True example/ --port 8383 --no-browser &

	- uses: nanasess/setup-chromedriver@master
	- name: Generate the screenshots
	run: \|
	export DISPLAY=:99
	chromedriver --url-base=/wd/hub &
	sudo Xvfb -ac :99 -screen 0 1280x1024x24 > /dev/null 2>&1 & # optional
	python3 $GITHUB_WORKSPACE/test/test.py

	- name: Upload screenshots
	uses: actions/upload-artifact@v4
	with:
	name: artifact
	path: "./*.png"

	- name: Compare the screenshots to the reference one
	run: \|
	python3 $GITHUB_WORKSPACE/test/test_figures.py

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