Improve documentation with clear project structure

[Atharvverma1234]

The current README lacks a clear project structure,
which can be confusing for first-time contributors.

This issue proposes improving the README by:

• Adding a clear project structure section

These changes will help new contributors understand the project faster
and improve overall onboarding.

[github-actions]

👋 Thank you for raising an issue! We appreciate your effort in helping us improve. A maintainer from OpenDots will review it shortly. Stay tuned!

[Atharvverma1234]

Hello sir,
I would like to work upon this issue under Apertre 3.0.
Please assign it to me.
Thank you.