Add workflow for linting and markdown-link-check #13

	name: "Link check for internal links"
	on:
	push:
	branches: ["main"]
	paths:
	- "**.md"
	pull_request:
	branches: ["main"]
	paths:
	- "**.md"

	jobs:
	link-checker:
	name: Check internal and external links in markdown files
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4.0.0
	with:
	ref: ${{ github.ref }}
	fetch-depth: 0

	- name: Set Node version
	id: versions
	shell: bash
	run: \|
	NODE_VERSION=$(jq -r '.engines.node' package.json)
	echo "NODE_VERSION=$NODE_VERSION" >> $GITHUB_OUTPUT

	- name: Setup node.js
	uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3.6.0
	with:
	node-version: ${{ steps.versions.outputs.NODE_VERSION }}

	- name: Install dependencies
	run: npm install

	- name: Run markdown link check
	run: npm run markdown-link-check -- -q -o

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