Add some extra link checking in CI #49

	name: ci
	on:
	push:
	branches:
	- '**'
	pull_request:
	permissions:
	contents: write
	jobs:
	deploy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Configure Git Credentials
	run: \|
	git config user.name github-actions[bot]
	git config user.email 41898282+github-actions[bot]@users.noreply.github.com
	- uses: actions/setup-python@v5
	with:
	python-version: '3.x'
	cache: 'pip'
	- run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
	- uses: actions/cache@v4
	with:
	key: mkdocs-material-${{ env.cache_id }}
	path: .cache
	restore-keys: \|
	mkdocs-material-
	- run: pip install mkdocs-material mkdocs-linkcheck
	- name: Build documentation (strict)
	run: mkdocs build --strict
	- name: Check external links
	run: mkdocs-linkcheck -r docs -m get --exclude "console.cloud.google.com" --exclude "\.md$" --exclude "\.yaml$""
	- name: Deploy to GitHub Pages
	if: github.ref == 'refs/heads/main' && github.event_name == 'push'
	run: mkdocs gh-deploy --force

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