📝[Docs]: Add table of contents to the readme file

[tatheer-fathima]

Is there an existing issue for this?

• I have searched the existing issues

Issue Description

Currently, the readme file doesn't have the table of contents section.

Suggested Change

I would to add the table of contents section in readme file for better navigation to link and enhance the user experience.

Rationale

No response

Urgency

High

Record

• I have read the Contributing Guidelines
• I'm a GSSOC'24 contributor
• I want to work on this issue

[github-actions]

Congratulations, @T-Fathima! 🎉 Thank you for creating your issue. Your contribution is greatly appreciated and we look forward to working with you to resolve the issue. Keep up the great work!

We will promptly review your changes and offer feedback. Keep up the excellent work! Kindly remember to check our contributing guidelines