Add GHA for rendering the book #1

	# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
	# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
	on:
	push:
	branches: [main, master]
	pull_request:
	branches: [main, master]
	schedule:
	# * is a special character in YAML so you have to quote this string
	# Trigger once a week, on a Sunday (0)
	- cron: "0 0 * * 0"
	workflow_dispatch:

	name: bookdown

	jobs:
	bookdown:
	runs-on: ubuntu-latest
	# Only restrict concurrency for non-PR jobs
	concurrency:
	group: pkgdown-${{ github.event_name != 'pull_request' \|\| github.run_id }}
	env:
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
	steps:
	- uses: actions/checkout@v4

	- uses: r-lib/actions/setup-pandoc@v2
	with:
	pandoc-version: "3.1.8"

	- uses: r-lib/actions/setup-r@v2
	with:
	use-public-rspm: true

	- uses: r-lib/actions/setup-renv@v2

	- name: Cache bookdown results
	uses: actions/cache@v3
	with:
	path: _bookdown_files
	key: bookdown-${{ hashFiles('*/Rmd') }}
	restore-keys: bookdown-

	- name: Build site
	run: bookdown::render_book("index.Rmd", quiet = TRUE)
	shell: Rscript {0}

	- name: Deploy to GitHub pages 🚀
	if: github.event_name != 'pull_request'
	uses: JamesIves/github-pages-deploy-action@v4.4.1
	with:
	branch: gh-pages
	folder: _book

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