Don't need OpenOptions::write with append #1

	name: Deploy book
	on:
	push:
	branches:
	- main
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow one concurrent deployment
	concurrency:
	group: "pages"
	cancel-in-progress: true

	jobs:
	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Install mdbook
	uses: taiki-e/install-action@v2
	with:
	tool: mdbook
	- name: Setup Pages
	uses: actions/configure-pages@v2
	- name: Build book
	run: \|
	mdbook build book
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v1
	with:
	path: "book/book"
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v1

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