Add: pdf introduction files #292

	name: CI

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: 18
	cache: npm
	- name: Install npm dependencies
	run: npm ci
	- name: Build
	run: npm run build
	check:
	name: Check Prettier, ESLint, and TypeScript
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: 18
	cache: npm
	- name: Install npm dependencies
	run: npm i
	- name: Prettier
	run: npm run prettier
	- name: ESLint
	run: npm run lint
	- name: Typecheck
	run: npm run typecheck

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