Added SECURITY.md and CODE_OF_CONDUCT.md for improved project governance

[Vibhasha-5]

As a security-focused open-source project, this repository should include clear guidelines for vulnerability disclosure and community behavior.
Adding these files improves transparency, trust, and compliance with GitHub best practices.

Proposed Changes:

• Added SECURITY.md with:
• Instructions for responsibly reporting vulnerabilities
• Contact information
• Disclosure window
• Added CODE_OF_CONDUCT.md using Contributor Covenant v2.1

Benefits:

• Increases project credibility and contributor safety
• Encourages responsible vulnerability reporting
• Aligns project with open-source community standards

Fixes Issue:

• Issue No. Add SECURITY.md and CODE_OF_CONDUCT.md Policies #6 as per assignment.

[Copilot]

Pull Request Overview

This PR adds Docker support, GitHub Actions workflow, and community documentation (Code of Conduct and Security Policy) to the pdf-xss-checker project. It also introduces a sample PDF generation script to facilitate testing and demonstration.

• Adds Docker support with a Dockerfile and comprehensive README instructions
• Creates a GitHub Actions workflow for automated scanning of sample PDFs
• Adds SECURITY.md and CODE_OF_CONDUCT.md for community guidelines
• Introduces a script to generate sample PDFs with and without XSS payloads

Reviewed Changes

Copilot reviewed 7 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
package.json	Added pdfkit dependency and generate-samples script, alphabetized dependencies
package-lock.json	Updated lockfile with pdfkit and its transitive dependencies
examples/generate_samples.js	New script to generate sample PDFs for testing purposes
examples/sample1.pdf	Generated clean sample PDF for testing
examples/sample2.pdf	Generated sample PDF containing XSS payload for testing
docker/Dockerfile	New Dockerfile for containerized scanner execution
README.md	Added Docker setup and usage instructions with platform-specific examples
SECURITY.md	New security policy document for vulnerability reporting
CODE_OF_CONDUCT.md	New code of conduct for community participation
.github/workflows/example-scan.yml	New CI workflow to automate PDF scanning with Docker

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[Copilot]

Corrected spelling of 'flexiblity' to 'flexibility'.

Suggested change

	- **Response Time:** We aim to respond within **5 working days**. Please allow flexiblity as per moderator's time bracket.
	- **Response Time:** We aim to respond within **5 working days**. Please allow flexibility as per moderator's time bracket.

[Copilot]

Missing markdown formatting for code blocks. The Docker command on line 165 should be wrapped in code fences (```) for proper rendering and clarity.

Suggested change

	1️⃣ Build the Docker image
	docker build -t pdf-xss-checker-example -f docker/Dockerfile .
	1️⃣ Build the Docker image
	```bash
	docker build -t pdf-xss-checker-example -f docker/Dockerfile .

[Copilot]

Section headings should use proper markdown formatting (e.g., #### For Linux / macOS) for better structure and accessibility.

Suggested change

	For Linux / macOS
	Use $(pwd) to mount the current folder:
	docker run --rm -v "$(pwd)/examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample1.pdf
	docker run --rm -v "$(pwd)/examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample2.pdf
	🪟 Windows PowerShell
	Use ${PWD} for the current directory:
	docker run --rm -v "${PWD}\examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample1.pdf
	docker run --rm -v "${PWD}\examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample2.pdf
	🪟 Windows CMD
	#### For Linux / macOS
	Use $(pwd) to mount the current folder:
	docker run --rm -v "$(pwd)/examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample1.pdf
	docker run --rm -v "$(pwd)/examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample2.pdf
	#### 🪟 Windows PowerShell
	Use ${PWD} for the current directory:
	docker run --rm -v "${PWD}\examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample1.pdf
	docker run --rm -v "${PWD}\examples:/examples" pdf-xss-checker-example node src/index.js /examples/sample2.pdf
	#### 🪟 Windows CMD