config: gemfile이 필수는 아닌 것 같아서 제거 #3

	name: Deploy site

	on:
	push:
	branches:
	- master
	workflow_dispatch:

	permissions:
	contents: write

	jobs:
	deploy:
	# available images: https://github.com/actions/runner-images#available-images
	runs-on: ubuntu-latest
	steps:
	- name: Checkout 🛎️
	uses: actions/checkout@v4
	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: "3.2.2"
	bundler-cache: true
	- name: Update _config.yml ⚙️
	uses: fjogeleit/yaml-update-action@main
	with:
	commitChange: false
	valueFile: "_config.yml"
	propertyPath: "giscus.repo"
	value: ${{ github.repository }}
	- name: Install and Build 🔧
	run: \|
	pip3 install --upgrade jupyter
	export JEKYLL_ENV=production
	bundle exec jekyll build --lsi
	- name: Purge unused CSS 🧹
	run: \|
	npm install -g purgecss
	purgecss -c purgecss.config.js
	- name: Deploy 🚀
	if: github.event_name != 'pull_request'
	uses: JamesIves/github-pages-deploy-action@v4
	with:
	folder: _site

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