Update README.md #221

	# This is a basic workflow to help you get started with Actions
	name: 02-1. Simple Workflow

	# Controls when the workflow will run
	on:
	# Triggers the workflow on push or pull request events but only for the main branch
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	workflow_call:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	name: Build
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v4

	# Runs a single command using the runners shell
	- name: Run a one-line script
	run: echo Hello, world!

	# Runs a set of commands using the runners shell
	- name: Run a multi-line script
	run: \|
	echo Add other actions to build,
	echo test, and deploy your project.

	- name: Run node.js version
	run: \|
	node -v

	# Running jobs in a container - Use a container to run the steps in a job.
	container:
	name: Container
	runs-on: ubuntu-latest
	container:
	image: node:14.15.0-alpine3.12

	steps:
	- name: Run inside container
	run: \|
	node -v
	cat /etc/os-release
	echo Hello Node from Container

	- name: Use another container
	uses: docker://node:12.14.1
	with:
	entrypoint: /bin/cat
	args: /etc/os-release

Provide feedback