Add diagram showing generated prompt structure to README

[Copilot]

The README lacked a visual representation of how the tool assembles context output, making it harder for users to understand the structure of the generated prompt.

Changes

• Added ASCII diagram showing the four-component structure:

  1. Task frontmatter (YAML metadata)
  2. Skills metadata (XML, optional)
  3. Rules content (markdown)
  4. Task content (markdown)

• Positioned at top of README after description, before Features section

The diagram illustrates the output order and key characteristics of each component (format, purpose, conditional inclusion).

┌─────────────────────────────────────────────────────────────┐
│ Generated Coding Context Prompt                             │
├─────────────────────────────────────────────────────────────┤
│  ┌───────────────────────────────────────────────────────┐  │
│  │ 1. Task Frontmatter (YAML)                            │  │
│  │    • Task metadata (selectors, agent, etc.)           │  │
│  └───────────────────────────────────────────────────────┘  │
│  ┌───────────────────────────────────────────────────────┐  │
│  │ 2. Skills Metadata (XML) - Optional                   │  │
│  └───────────────────────────────────────────────────────┘  │
│  ┌───────────────────────────────────────────────────────┐  │
│  │ 3. Rules Content (Markdown)                           │  │
│  └───────────────────────────────────────────────────────┘  │
│  ┌───────────────────────────────────────────────────────┐  │
│  │ 4. Task Content (Markdown)                            │  │
│  └───────────────────────────────────────────────────────┘  │
└─────────────────────────────────────────────────────────────┘

Original prompt

The read me should start with a diagram of the structure of the coding context prompt generated.

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[Copilot]

Pull request overview

This PR adds a visual ASCII diagram to the README that illustrates how the tool assembles the generated context output. The diagram shows the four-component structure (task frontmatter, skills metadata, rules content, and task content) along with their key characteristics and when each component is included. This documentation enhancement makes it easier for users to understand the structure and order of the generated prompt without needing to read through detailed documentation or examine the code.

• Added comprehensive ASCII diagram showing the four-component output structure
• Included descriptive bullet points for each component explaining their purpose and characteristics
• Added "Key Points" section summarizing the role of each component
• Positioned strategically at the top of README (after description, before Features) for immediate visibility