Update introduction.md (#2514) #944

	# This workflow will do a clean install of node dependencies and run tests across different versions of node
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

	name: javascript / main

	on:
	push:
	branches: [main]

	jobs:
	precheck:
	runs-on: ubuntu-22.04

	steps:
	- uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
	- name: Use Node.js LTS (18.x)
	uses: actions/setup-node@1e60f620b9541d16bece96c5465dc8ee9832be0b
	with:
	node-version: '18'

	- name: Install project dependencies
	run: npm ci

	- name: Run exercism/javascript ci precheck (checks config, lint code, and runs tests) for all exercises
	run: npx babel-node scripts/ci-check

	ci:
	runs-on: ubuntu-22.04

	strategy:
	matrix:
	node-version: ['18', '20']

	steps:
	- uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@1e60f620b9541d16bece96c5465dc8ee9832be0b
	with:
	node-version: ${{ matrix.node-version }}

	- name: Install project dependencies
	run: npm ci

	- name: Run exercism/javascript ci (checks config, lint code, and runs tests) for all exercises
	run: npx babel-node scripts/ci

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