docs: update descriptions and add Features table to README #1

	name: CI

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

	jobs:
	lint-and-smoke:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version-file: ".nvmrc"
	cache: "npm"

	- name: Install dependencies
	run: npm ci

	- name: Lint
	run: npm run lint

	- name: Smoke test — syntax check scripts
	run: \|
	for f in scripts/*.js; do
	echo "Checking $f"
	node --check "$f"
	done

Provide feedback