Fix README.md formatting and add comprehensive documentation

[Copilot]

The README.md file had formatting issues and lacked meaningful content to help users understand the repository structure and contents.

Issues Fixed

Formatting Problems:

• The markdown header was improperly formatted without proper spacing
• Minimal content provided no value to repository visitors

Missing Documentation:

• No description of what the repository contains
• No explanation of the daily assignment structure
• No guidance on how to view or navigate the projects

Changes Made

Enhanced README with comprehensive documentation:

• Fixed markdown header formatting for proper rendering
• Added clear repository description explaining this is a Coder Army learning journey
• Documented complete repository structure with detailed breakdown:
  • Day 1: HTML Fundamentals (frontend development guide)
  • Day 2: HTML Lists and Tables (organized into lists and tables subdirectories)
  • Day 4: Forms and Input Elements (job application portal)
• Added "How to View Projects" section with step-by-step instructions
• Included "Learning Progress" section showing skill development progression
• Added "About Coder Army" section providing context about the learning platform

The README now serves as a proper introduction and navigation guide for the repository, making it clear what each assignment covers and how the learning progresses from basic HTML to advanced form handling.

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