Fix shape typo #140

	name: docs

	on:
	push:
	branches: [master]

	jobs:
	docs:
	runs-on: ubuntu-latest
	container:
	image: python:3.9
	steps:

	# Check out source
	- uses: actions/checkout@v2

	# Build documentation
	- name: Building documentation
	run: \|
	apt-get update
	apt-get install -y graphviz
	pip install -e .
	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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