docs: add workflow status badges to README #60

	# SPDX-License-Identifier: Apache-2.0

	name: Lint Markdown documents

	on:
	push:
	branches:
	- "main"
	paths:
	- '*/.md'
	- '.markdownlint-cli2.yaml'
	- '.github/workflows/docs.yml' # This workflow
	pull_request:
	branches:
	- "main"
	paths:
	- '*/.md'
	- '.markdownlint-cli2.yaml'
	- '.github/workflows/docs.yml' # This workflow

	env:
	LC_ALL: en_US.UTF-8

	defaults:
	run:
	shell: bash

	permissions:
	contents: read

	jobs:
	markdown-lint:
	runs-on: ubuntu-latest
	steps:
	- name: "Harden Runner"
	uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
	with:
	egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
	- name: "Checkout"
	uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
	with:
	fetch-depth: 0
	- name: "Check Markdown documents"
	uses: DavidAnson/markdownlint-cli2-action@db43aef879112c3119a410d69f66701e0d530809 # v17.0.0
	with:
	globs: '*/.md'

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