Add security section for Sapphire/OPL #590

	name: ci-lint

	on:
	pull_request:
	branches: [main]

	jobs:
	ci-lint:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true

	- uses: actions/setup-node@v2
	with:
	node-version: 16.x
	cache: yarn

	- name: Install fonts
	run: \|
	sudo apt install fonts-noto-core -y

	- name: Yarn
	run: \|
	yarn install --frozen-lockfile

	- name: Mermaid diagrams synced with sources
	run: \|
	yarn diagrams
	git diff --exit-code

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