Enhancements to README and Logo Integration

[yunks128]

Description:

This PR improves the documentation and branding of RAPID2 by making the following changes:

Purpose

• Standardizes the README structure for better readability and navigation (SLIM best practices).
• Updates the project’s logo and ensures proper formatting.

Proposed Changes

• [ADD] New logo.svg under /static/img/ for better branding.
• [CHANGE] Improved README with a better layout, clear headers, and quick start sections.
• [FIX] Adjusted the logo size to improve visibility without taking up excess space.

Issues Addressed

• Resolves inconsistencies in README formatting.
• Enhances the visibility of project branding.

Testing

• Verified README rendering properly on GitHub.
• Checked logo size to ensure proper display.

Let me know if you need any modifications!