Update Readme

[DivyaJain-DataAnalyst]

hello @Kushika-Agarwal
can you assign this issue

Improved the README file for the Collaborative-code-editor 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.

[DivyaJain-DataAnalyst]

Thanks @Kushika-Agarwal
Can the level be decided on the PR raised..

[DivyaJain-DataAnalyst]

I'll raise the PR by tomorrow positively @Kushika-Agarwal