Update README file to add contribution section

[afzalzain]

📝 Description

This PR adds a new Contribution Guidelines (Quick Overview) section to the README to help new contributors understand how to get started, especially for non-coding contributions such as documentation improvements.

🎯 Type of Change

• 🆕 New tool added
• 🐛 Bug fix
• 📚 Documentation update
• 🎨 UI/UX improvement
• ⚡ Performance optimization
• 🔧 Code refactoring
• 🧪 Test addition
• 🚀 Feature enhancement

🛠️ Changes Made

• Added a new contribution guideline section under 🤝 Contributing
• Clarified steps for first-time contributors
• Highlighted non-coding contribution opportunities

🧪 Testing

• ✅ Tested on Chrome
• ✅ Tested on Firefox
• ✅ Tested on Safari
• ✅ Tested on Edge
• ✅ Tested on mobile devices
• ✅ No console errors
• ✅ All functionality works as expected
• ✅ Responsive design works properly

📸 Screenshots

🔗 Related Issues

Related to improving contributor documentation and onboarding.

📱 Browser Testing

• Chrome (latest)
• Firefox (latest)
• Safari (latest)
• Edge (latest)
• Mobile Chrome
• Mobile Safari

📋 Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own changes
• I have commented my code (not applicable)
• I have made corresponding changes to the documentation
• My changes generate no new warnings or errors
• I have added tests (not applicable)
• New and existing tests pass locally
• Any dependent changes have been merged and published

🎨 UI/UX Changes

• No UI changes (documentation-only update)

⚡ Performance Impact

• No performance regression
• Minimal impact (documentation-only)

🔒 Security Considerations

• No security vulnerabilities introduced
• No sensitive data exposed

📚 Documentation

• README updated
• Code comments added
• API documentation updated
• User-facing documentation improved

🎯 Additional Notes

This change improves onboarding for new contributors by clearly explaining how to contribute and encouraging non-coding contributions.

🚀 Deployment Notes

No deployment changes required.

👥 Reviewers

@echobash/devdunia-maintainers

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🙏 Thank You

Thank you for reviewing this documentation improvement!
Clear contribution guidelines help grow a healthy open-source community 🚀