add example with struct update syntax #79

	name: Deploy

	on:
	push:
	branches: [main]
	pull_request:
	workflow_dispatch:

	permissions:
	contents: read
	pages: write
	id-token: write

	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	build:
	runs-on: ubuntu-latest
	env:
	MDBOOK_VERSION: 0.4.37
	steps:
	- uses: actions/checkout@v4

	- name: Generate stderr files
	run: \|
	cd builder
	cargo run

	- name: Verify that stderr files are up to date
	run: git diff --exit-code code/examples/stderr

	- name: Install mdBook
	run: curl -L https://github.com/rust-lang/mdBook/releases/download/v${MDBOOK_VERSION}/mdbook-v${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz \| tar -xzC ~/.cargo/bin mdbook

	- name: Build with mdBook
	run: mdbook build

	- name: Upload artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: ./book

	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	needs: build
	if: github.event_name == 'push' \|\| github.event_name == 'workflow_dispatch'
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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