Add dark mode option #142

	name: docs

	on:
	push:
	branches: [main]

	jobs:
	docs:
	runs-on: ubuntu-latest
	steps:
	# Check out source
	- uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v1
	with:
	python-version: 3.8

	# Build documentation
	- name: Building documentation
	run: \|
	pip install --upgrade pip
	pip install -e ".[dev]"
	pip install -r docs/requirements.txt
	sphinx-build docs/source docs/build -b dirhtml

	# Deploy
	- name: Deploy to GitHub Pages
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/build

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