Restructure README.md with academic format, mermaid diagrams, and proper image organization

[Copilot]

Overview

This PR completely restructures the README.md to provide a concise academic overview with proper image placement, mermaid diagrams, and organized technical content suitable for educational and professional use.

Changes Made

📋 New Structure (6 sections as requested)

1. Project Overview - Academic introduction with network file system concepts
2. Features - 10 key capabilities highlighting RAID5 and distributed systems
3. High-Level Architecture - System design with visual diagrams
4. UML Overview - Object-oriented design representation
5. Running Instructions - Comprehensive setup and usage guide
6. References and Credits - Academic context and technical references

🖼️ Image Organization

• images/image-3.png - Placed prominently in Project Overview as generic network file system block diagram
• design.png - Integrated into High-Level Architecture section as RAID5 parity distribution diagram
• Added proper captions and context for both images

📊 Added Mermaid Diagrams

High-Level Architecture Diagram:

graph TB
    subgraph "Client Layer"
        C1[Client 1]
        C2[Client 2]
    end
    subgraph "Network Layer"
        NL[Network Communication<br/>XML-RPC]
    end
    subgraph "Server Layer"
        S1[Storage Server 1<br/>Port 8000]
        S2[Storage Server 2<br/>Port 8001]
    end

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UML Class Diagram:

• Shows relationships between DiskBlocks, FileOperations, FSShell, InodeNumber, and other core components
• Illustrates the object-oriented design and data flow

📚 Content Improvements

• Academic Tone: Repositioned as educational tool for distributed systems concepts
• Technical Accuracy: Preserved all original technical details while improving clarity
• Comprehensive Features: Highlighted RAID5, fault tolerance, load balancing, and recovery capabilities
• Detailed Instructions: Enhanced server/client setup with parameter explanations
• Recovery Guidelines: Clear repair and testing procedures for fault tolerance validation

🎯 Key Benefits

• Educational Value: Suitable for distributed systems, operating systems, and computer networks courses
• Professional Presentation: Clean, organized structure for technical documentation
• Visual Clarity: Diagrams complement textual descriptions for better understanding
• Practical Guidance: Step-by-step instructions for implementation and testing

Before/After Comparison

Before: Basic README with scattered information, unclear image placement, no diagrams
After: Structured academic document with proper visual hierarchy, comprehensive diagrams, and organized technical content

Lines: 110 → 272 (significant enhancement while maintaining conciseness)

Testing

• ✅ All image references validated and working
• ✅ Mermaid diagrams syntax validated
• ✅ All original technical content preserved and reorganized
• ✅ Instructions tested for clarity and completeness

This restructure transforms the README from a basic project description into a comprehensive academic resource while maintaining all essential technical information.

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