[Documentation] Fix Incorrect Tech Stack and Setup Instructions in README

[Utkarshprajapat]

Description

The current README mentions React.js, Node.js, MongoDB, npm install, and npm start commands, but the repository currently appears to be a static HTML/CSS/JavaScript project with Python components.

Proposed Changes

• Update actual tech stack information
• Fix incorrect setup instructions
• Add proper local project running steps
• Improve onboarding clarity for contributors

Benefits

This would help new contributors avoid setup confusion and better understand the current project structure.

I would like to work on this issue under ELUSOC'26.

[omroy07]

Assigned