fix: update doc of kafka connector demo for #3993 (#3995) #1810

	name: documents

	# Doc workflow deploy to https://4paradigm.github.io/OpenMLDB/
	#
	# Deployment requires main(default) branch and all vX.Y branches exists.
	# Workflow triggers only on main branch, based on the model that all patches
	# to vX.Y branches will first goes to main.
	on:
	push:
	branches:
	- main
	paths:
	- .github/workflows/doc.yml
	- 'docs/**'
	pull_request:
	paths:
	- .github/workflows/doc.yml
	- 'docs/**'

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow one concurrent deployment
	concurrency:
	group: pages-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: setup poetry
	run: \|
	pipx install poetry

	- name: doc build (pr)
	working-directory: docs
	if: github.event_name == 'pull_request'
	run: \|
	make all-local

	- name: doc build (branch)
	working-directory: docs
	if: github.event_name == 'push'
	run: \|
	make

	- name: upload artifact
	if: github.event_name == 'push'
	uses: actions/upload-pages-artifact@v1
	with:
	path: docs/build/

	# Deployment job
	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	needs: build
	if: github.event_name == 'push'
	steps:
	# This action expects an artifact named github-pages to have been created prior to execution.
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v1

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