docs(readme): add ng18 info #407

	name: Build & run all tests

	on: [push]

	jobs:
	test:
	environment: develop
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@master
	- name: Use Node.js 20
	uses: actions/setup-node@master
	with:
	node-version: 20

	- name: Cache node modules
	uses: actions/cache@v3
	env:
	cache-name: cache-node-modules
	with:
	path: ~/.npm # npm cache files are stored in `~/.npm` on Linux/macOS
	key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-build-${{ env.cache-name }}-
	${{ runner.os }}-build-
	${{ runner.os }}-

	- name: Install dependencies # Install all deps
	run: yarn

	- name: Sync versions # Sync versions
	run: yarn syncprojects

	- name: Build ngx-scrolltop # Build
	run: yarn build --configuration production

	- name: Build Schematics # Build Schematics and move
	run: yarn build:schematics

	- name: Build demo # Build demo page
	run: yarn build:demo

	- name: Run tests # Build Schematics and move
	run: yarn test --configuration=ci

Provide feedback