Fixes #1068 Improved the README.md with enhanced setup instructions and a comprehensive troubleshooting section

[Shobhini]

Changes

Prerequisites Enhancement

• Added direct download links for Node.js and Python
• Updated Python version requirement (3.8+ for better clarity)
• Added verification commands to check installations:

  node --version
  npm --version
  python3 --version

Python Virtual Environment Setup

• Added step-by-step venv creation instructions
• Platform-specific activation commands (macOS/Linux vs Windows)
• Clear separation between environment setup and dependency installation

Summary by CodeRabbit

• Documentation

  • Updated the leaderboard "Last updated" date and replaced detailed contributor rows with a single placeholder entry.

• Bug Fixes

  • Fixed the Student Account navigation link so it now opens the correct page.