Add a README #5

	# I built this first attempt by combining two example scripts
	# https://github.com/danott/allow-empty/new/main?filename=.github%2Fworkflows%2Fstatic.yml&workflow_template=pages%2Fstatic
	# https://docs.github.com/en/pages/getting-started-with-github-pages/using-custom-workflows-with-github-pages#linking-separate-build-and-deploy-jobs
	name: Deploy to GitHub Pages

	on:
	workflow_dispatch:
	push:
	branches: ["main"]
	permissions:
	contents: read
	pages: write
	id-token: write
	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: Setup Pages
	id: pages
	uses: actions/configure-pages@v3
	- name: Rake build
	run: bundle exec rake build
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v2

	deploy:
	environment:
	name: github-pages
	url: ${{steps.deployment.outputs.page_url}}
	runs-on: ubuntu-latest
	needs: build
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v2

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