Add back-to-top scroll up button in readme

[T-Fathima]

Is this a unique feature?

• I have checked "open" AND "closed" issues and this is not a duplicate

Is your feature request related to a problem/unavailable functionality? Please describe.

I would like to add back-to-top scroll up at the end of the readme file for easier navigation in lengthy readme file and enhance the user experience.

Do you want to work on this issue?

Yes

[github-actions]

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[github-actions]

Ensure the issue is not similar or previously being worked on.Thanks for your time

[github-actions]

✅ This issue has been successfully closed. Thank you for your contribution and helping us improve the project! If you have any more ideas or run into other issues, feel free to open a new one. Happy coding! 🚀