Add resizable pane info to the README and update notification #445

	name: GitHub Actions CI

	on:
	push:
	branches:
	- master
	- release/*
	pull_request:
	branches:
	- master

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1
	- name: Use Node.js
	uses: actions/setup-node@v1
	with:
	node-version: 16.x
	- name: npm install, build, and test
	run: \|
	npm ci
	npm run build --if-present
	npm test --if-present
	env:
	CI: true
	- name: publish artifacts
	uses: actions/upload-artifact@master
	with:
	name: userscript
	path: src/

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