Improve README.md for QR Code Customization Website

[chikatlarakesh]

This pull request enhances the README.md file for the QR Code Customization Website project by:

• Providing a detailed project description that highlights key features, including QR code customization options and Firebase authentication.
• Including clear and concise installation steps for cloning the repository, installing dependencies, and running the project locally.
• Adding an explanation for setting up Firebase environment variables necessary for authentication and storage configuration.
• Introducing contribution guidelines to encourage community engagement and streamline the contribution process.
• Adding a contact section for users to reach out with questions or inquiries.

These improvements aim to make the project more accessible for both contributors and new users, enhancing clarity and usability.

[vercel]

@chikatlarakesh is attempting to deploy a commit to the Akshay Patel's projects Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

🎉 Thank you for your contribution! Your pull request has been submitted successfully. A maintainer will review it as soon as possible. We appreciate your support in making this project better

[VesperAkshay]

@chikatlarakesh There is conflict with branch as recently the readme has been updated so make the changes according to it