Add post setup docs #24

	---
	name: mdbook
	on:
	push:
	branches: [master]
	paths:
	- 'docs/**'
	- 'README.md'
	pull_request:
	paths:
	- 'docs/**'
	- 'README.md'

	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	if: github.event_name == 'push' && github.ref == 'refs/heads/master'
	steps:
	- name: Checkout codebase
	uses: actions/checkout@v4

	- name: Install latest mdbook
	run: \|
	tag=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' \| jq -r '.tag_name')
	url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
	mkdir mdbook
	curl -sSL $url \| tar -xz --directory=./mdbook
	echo `pwd`/mdbook >> $GITHUB_PATH

	- name: Build mdbook
	run: \|
	cd docs
	mdbook build

	- name: Deploy to GitHub Pages
	run: \|
	git worktree add gh-pages
	git config user.name "Deploy from CI"
	git config user.email ""

	cd gh-pages
	# Delete the ref to avoid keeping history.
	git update-ref -d refs/heads/gh-pages
	rm -rf *
	mv ../docs/book/* .
	git add .
	git commit -m "Deploy $GITHUB_SHA to gh-pages"
	git push --force --set-upstream origin gh-pages

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