Enhance README with troubleshooting and FAQ

[Dippp10-ally]

📌 Description

This PR improves the project documentation by adding dedicated Troubleshooting and FAQ sections to the README. These additions help users quickly resolve common issues, answer frequently asked questions, and make the project easier to understand and contribute to.

🔗 Related Issue

Closes #2000

🛠 Changes Made

• Added a Troubleshooting Guide covering common installation, setup, configuration, and runtime issues.
• Added a Frequently Asked Questions (FAQ) section addressing common user and contributor queries.
• Improved the overall organization and readability of the README for easier navigation.

📸 Screenshots (if applicable)

N/A – Documentation-only changes.

✅ Checklist

• Code runs locally
• Followed project structure
• No console errors
• Properly tested changes
• Linked the issue

🚀 Notes for Reviewers

Please review the clarity, accuracy, and organization of the newly added documentation. Suggestions for additional troubleshooting scenarios or FAQ entries are welcome.

[Dippp10-ally]

@aryandas2911 ji , do assign labels called as gssoc:approved , level:intermediate , type:docs , quality:exceptional to above pull request number 2001 also......do merge above pull request number 2001 also.....