Update readme and other instructions #1

	name: Build and Deploy Preview

	on:
	pull_request:
	types: [opened, synchronize]
	paths:
	- 'src/main/resources/templates/**'
	- 'src/main/resources/static/**'
	- 'src/main/resources/explanations/**'

	jobs:
	build-preview:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up JDK 23
	uses: actions/setup-java@v4
	with:
	java-version: "23"
	distribution: "oracle"
	cache: "maven"

	- name: Build application
	run: ./mvnw --no-transfer-progress clean package -DskipTests

	- name: Build Docker image
	run: \|
	docker build -t wrongsecrets-preview .
	docker save wrongsecrets-preview > wrongsecrets-preview.tar

	- name: Upload preview artifact
	uses: actions/upload-artifact@v4
	with:
	name: wrongsecrets-preview-${{ github.event.number }}
	path: wrongsecrets-preview.tar

	- name: Comment on PR with instructions
	uses: actions/github-script@v7
	with:
	script: \|
	const comment = `🔨 Preview Build Complete!

	Your changes have been built successfully. To test locally:

	\`\`\`bash
	# Download the artifact and load the Docker image
	docker load < wrongsecrets-preview.tar
	docker run -p 8080:8080 wrongsecrets-preview
	\`\`\`

	Then visit: http://localhost:8080

	Changed Files in this PR:
	- Templates: ${{ github.event.pull_request.changed_files }}

	---
	<sub>Build completed by GitHub Actions</sub>`;

	github.rest.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: comment
	});

Provide feedback