Add docs for empty captures in string patterns #2273

	name: Triage
	on:
	# https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
	# All event types
	# Be careful when adding more actions to this workflow
	# https://github.com/actions/labeler#permissions
	pull_request_target:
	types: [labeled, unlabeled, opened, ready_for_review, reopened, synchronize]

	jobs:
	label-pull-request:
	name: 'Label Pull Request'
	permissions:
	contents: read
	pull-requests: write
	runs-on: ubuntu-latest
	steps:
	- uses: actions/labeler@v4 # https://github.com/actions/labeler
	with:
	repo-token: '${{ secrets.GITHUB_TOKEN }}'
	sync-labels: true
	dot: true
	first-interaction:
	name: First Interaction
	permissions:
	contents: read
	pull-requests: write
	runs-on: ubuntu-latest
	steps:
	- uses: actions/first-interaction@v1 # https://github.com/actions/first-interaction
	with:
	repo-token: ${{ secrets.GITHUB_TOKEN }}
	pr-message: "Hi @${{ github.event.pull_request.user.login }}, thanks so much for helping improve the Roblox creator documentation! Our technical writing team will review your pull request soon. In the meantime, please ensure you've read through the [README.md](https://github.com/Roblox/creator-docs#readme), contribution guidelines, and [style recommendations](https://github.com/Roblox/creator-docs/blob/main/STYLE.md)."

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