Improve README with quick start guide and examples

[moundekaranshika]

Description

This PR improves the README by adding clearer usage instructions, examples, and better formatting.

Changes Made

• Added Quick Start section
• Included example usage and output
• Improved flags documentation
• Added use cases and workflow
• Fixed formatting issues

Motivation

Helps new users and contributors quickly understand how to use GoReSym.

Impact

No code changes. Improves documentation and onboarding.

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