Add Markdown formatting to code blocks #1

	name: Build Docker Image for Pull Request Testing

	on:
	pull_request:

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: jordan-dalby/bytestash

	jobs:
	docker:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set Docker tag for testing
	id: docker_tag
	run: echo "TAG=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}" >> $GITHUB_ENV

	- name: Build Docker image (without push)
	uses: docker/build-push-action@v5
	with:
	context: .
	push: false
	tags: ${{ env.TAG }}

	- name: Comment on PR with Docker image tag
	if: github.event_name == 'pull_request'
	uses: actions/github-script@v6
	with:
	script: \|
	const prNumber = context.payload.pull_request.number;
	const imageTag = process.env.TAG;
	const commentBody = `Docker image built for testing: \`${imageTag}\``;
	await github.rest.issues.createComment({
	owner: context.repo.owner,
	repo: context.repo.repo,
	issue_number: prNumber,
	body: commentBody
	});

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