Add back-to-top scroll up in readme

[T-Fathima]

Is this feature already requested?

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

Feature Description

I would like to add back-to-top scroll up in the readme file for easier navigation in lengthy readme files.

@ajaynegi45 I would like to work on it.
Please assign it to me.

[github-actions]

👋 Thank you @T-Fathima for raising an issue! We’re thrilled to have your input as we work to make this project even better. Our team will review it shortly, so stay tuned! Meanwhile, make sure your issue gets noticed, don’t forget to star the repo 🌟 and follow @ajaynegi45 for even more project insights!