[minor][docs] Updating Spark quick-start doc for spark.kryo.registrator #2123

	name: asf-site CI

	on:
	push:
	branches: [ asf-site ]
	pull_request:
	branches: [ asf-site ]

	jobs:
	hudi-asf-site-ci:
	name: "Apache Hudi asf-site CI"
	runs-on: ubuntu-latest
	env:
	DOCS_ROOT: "./website"
	steps:
	- uses: actions/checkout@v2
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	fetch-depth: 0
	- name: Check for files in content/
	if: github.event_name == 'pull_request'
	run: \|
	echo "Changed files:"
	git fetch origin ${{ github.base_ref }}
	CHANGED_FILES=$(git diff --name-only origin/${{ github.base_ref }} HEAD)

	echo "$CHANGED_FILES"

	if echo "$CHANGED_FILES" \| grep -q '^content/'; then
	echo "❌ PR should not change files under content/; change the files under website/ instead."
	exit 1
	else
	echo "✅ No files under content/ directory."
	fi
	- name: Prepare branch
	run: \|
	git config --global user.name "CI BOT"
	git config --global user.email "[email protected]"
	git checkout -b pr
	git remote add hudi https://${{ secrets.GITHUB_TOKEN }}@github.com/apache/hudi.git
	git pull --rebase hudi asf-site
	- uses: actions/setup-node@v2
	with:
	node-version: '18'
	- name: Build website
	run: \|
	pushd ${{ env.DOCS_ROOT }}
	npm install
	npm run build
	popd
	- name: Publish website
	if: ${{ github.event_name != 'pull_request' }}
	run: \|
	echo "pushing build result ..."
	rm -rf content
	cp -R ${{ env.DOCS_ROOT }}/build content
	git add -A
	git commit -am "GitHub Actions build asf-site"
	git push hudi pr:asf-site

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