Update README.rst #91

	name: Build documentation

	on: [push]

	jobs:
	docs:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1

	- uses: actions/setup-python@v2
	with:
	python-version: 3.9

	- uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install numpy
	pip install -e .[docs]

	- name: Build
	run: sphinx-build docs/src docs_build

	- name: Deploy
	uses: peaceiris/actions-gh-pages@v3
	with:
	deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
	publish_dir: ./docs_build

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