Update getting-started.md #26

	# github pages: https://github.com/marketplace/actions/github-pages-action#table-of-contents
	# How to cache node_modules in GitHub Actions with Yarn: https://dev.to/mpocock1/how-to-cache-nodemodules-in-github-actions-with-yarn-24eh

	name: GitHub Pages

	on:
	push:
	branches:
	- master
	# trigger deployment manually
	workflow_dispatch:

	jobs:
	build-docs:
	runs-on: ubuntu-22.04
	permissions:
	contents: write
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	steps:
	- uses: actions/checkout@v4
	with:
	# fetch all commits to get last updated time or other git log info
	fetch-depth: 0

	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: '18.x'

	- name: Get yarn cache
	id: yarn-cache
	run: echo "YARN_CACHE_DIR=$(yarn cache dir)" >> "${GITHUB_OUTPUT}"

	- name: Cache dependencies
	uses: actions/cache@v3
	with:
	path: ${{ steps.yarn-cache.outputs.YARN_CACHE_DIR }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- name: Install packages
	if: steps.yarn-cache.outputs.cache-hit != 'true'
	run: yarn --frozen-lockfile

	# run build script
	- name: Build VitePress site
	run: yarn docs:build

	- name: Deployment
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/.vitepress/dist

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