Revert "removed unused book" #3

	name: deploy-book

	# Only run this when the master branch changes
	on:
	push:
	branches:
	- master
	- main

	# This job installs dependencies, build the book, and pushes it to `gh-pages`
	jobs:
	deploy-book:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	# Install dependencies
	- name: Set up Python 3.9
	uses: actions/setup-python@v4
	with:
	python-version: 3.9

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r ./docs/requirements.txt
	# Build the book
	- name: Build the book
	run: \|
	jupyter-book build docs/
	# Push the book's HTML to github-pages
	- name: GitHub Pages action
	uses: peaceiris/[email protected]
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/_build/html

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