update readme

[DivyaJain-DataAnalyst]

Improved the README file for the Refixly project as part of my GSSoC’25 open-source contribution. The update includes clearer project details, setup instructions, and usage guidelines to help contributors and users easily get started.

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊