Bump remark-lint-no-multiple-toplevel-headings from 3.1.2 to 4.0.0 in /.config/remark #2961

	name: Checking Markdown formatting and providing language suggestions

	on:
	pull_request:

	jobs:
	remark-lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Run remark-lint with reviewdog for documentation projects.
	uses: ./.config/remark/
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	command: remark.sh

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