doc(tc39/stage4): Change Array by copy #355

	name: Build the book
	on:
	push:
	branches:
	- docs
	concurrency: building
	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	with:
	ref: docs
	fetch-depth: 0 # all history for building
	- uses: actions/setup-node@v2-beta
	with:
	node-version: '16'
	- name: Configure
	run: \|
	git version
	git clone --depth=1 --branch=build https://github.com/aleen42/PersonalWiki.git temp
	mv -f temp/* ./
	mv temp/.bookignore ./
	git clone --depth=1 --branch=gh-pages https://github.com/aleen42/PersonalWiki.git gh-pages
	- name: Dependencies
	id: cache-npm
	uses: actions/cache@v3
	env:
	cache-name: cache-node-modules
	with:
	# npm cache files are stored in `~/.npm` on Linux/macOS
	path: ~/.npm
	key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package.json') }}
	restore-keys: \|
	${{ runner.os }}-build-${{ env.cache-name }}-
	${{ runner.os }}-build-
	${{ runner.os }}-
	- if: ${{ steps.cache-npm.outputs.cache-hit == 'false' }}
	name: List dependencies
	continue-on-error: true
	run: npm list
	- name: Build
	run: \|
	npm version
	npm install --no-save --no-audit
	npm run gitbook:install
	npm run gitbook:build
	node ./config.js
	env:
	ACCESS_TOKEN: ${{secrets.ACCESS_TOKEN}}
	- name: Deploy
	uses: aleen42/github-pages-deploy-action@master
	env:
	ACCESS_TOKEN: ${{secrets.ACTION_TOKEN}}
	BRANCH: gh-pages
	FOLDER: gh-pages

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