📝 add instruction #3

	# Build website and save it on gh-pages branch
	name: build-and-save-website

	# Only run this when the master branch is ch
	on:
	push:
	branches:
	- main
	workflow_dispatch:

	# This job installs dependencies, builds the website and pushes it to `gh-pages`
	jobs:
	deploy:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	- name: Install dependencies
	run: \|
	pip install -r requirements.txt

	- name: Build the site
	run: \|
	sphinx-build -nW --keep-going -b html . _build

	# If we've pushed to main, push the book's HTML to github-pages
	- if: ${{ github.ref == 'refs/heads/main' }}
	name: Save to gh-pages
	uses: peaceiris/actions-gh-pages@v4
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./_build
	# cname: website.com

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