Update unit-testing.md v12 #2

	name: Vale Linter wit ReviewDog
	on: [pull_request]

	jobs:
	vale:
	name: runner / vale
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: errata-ai/vale-action@reviewdog
	with:
	fail_on_error: true
	env:
	# Required, set by GitHub actions automatically:
	# https://docs.github.com/en/actions/security-guides/automatic-token-authentication#about-the-github_token-secret
	GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

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