[doc] add small example to flight recorder tutorial #258

	#Checks links in a PR to ensure they are valid. If link is valid but failing, it can be added to the .lycheeignore file
	#Use the skip-link-check label on a PR to skip checking links on a PR

	name: link check on PR

	on:
	pull_request:
	branches: [main]

	jobs:
	linkChecker:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 1

	- name: Get Changed Files
	id: changed-files
	uses: tj-actions/changed-files@v41

	- name: Check for Skip Label
	id: skip-label
	uses: actions/github-script@v6
	with:
	script: \|
	const labels = await github.rest.issues.listLabelsOnIssue({
	owner: context.repo.owner,
	repo: context.repo.repo,
	issue_number: context.issue.number
	});
	return labels.data.some(label => label.name === 'skip-link-check');

	- name: Check Links
	if: steps.skip-label.outputs.result == 'false'
	uses: lycheeverse/lychee-action@v1
	with:
	args: --accept=200,403,429 --base . --verbose --no-progress ${{ steps.changed-files.outputs.all_changed_files }}
	token: ${{ secrets.CUSTOM_TOKEN }}
	fail: true

	- name: Skip Message
	if: steps.skip-label.outputs.result == 'true'
	run: echo "Link check was skipped due to the presence of the 'skip-link-check' label."

	- name: Suggestions
	if: failure()
	run: \|
	echo -e "\nPlease review the links reported in the Check links step above."
	echo -e "If a link is valid but fails due to a CAPTCHA challenge, IP blocking, login requirements, etc., consider adding such links to .lycheeignore file to bypass future checks.\n"
	exit 1

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