Add table of contents and citations to README

[Copilot]

Overview

This PR enhances the README.md file to improve usability and credibility by adding a structured table of contents and comprehensive citations for all external tools, libraries, and research materials.

Changes

Table of Contents

Added a navigable table of contents at the beginning of the README that includes:

• Links to all major sections (Screenshots, Key Capabilities, Getting Started, Testing and Quality, Data Roadmap, Responsible Use, Citations and References)
• Nested subsections for Getting Started (Backend CLI, Frontend Dashboard, Frontend Experience Highlights)
• Properly formatted anchor links that work seamlessly with GitHub's markdown rendering

Citations and References Section

Added a comprehensive new section documenting:

Backend Technologies with proper citations:

• Core Python libraries (Python ≥3.10, Typer, Rich, NumPy, pandas)
• Machine learning libraries (scikit-learn with academic citation, SHAP with NeurIPS 2017 citation)
• Code analysis tools (tree-sitter, Radon)

Frontend Technologies:

• React, Vite, TypeScript, and Tailwind CSS with links to official documentation

Related Research:

• Academic citations for key papers on code authorship attribution and stylometry
• References to foundational work by Burrows, Caliskan, and Solaiman

Citation Format:

• BibTeX citation block for researchers to reference this project
• Link to the existing CITATION.cff file for complete metadata

Enhanced Screenshots Section

• Added descriptive introductory text explaining the web interface functionality
• Improved alt text for all three images with meaningful descriptions instead of generic labels

Benefits

• Improved Navigation: Users can quickly jump to relevant sections using the TOC
• Enhanced Credibility: Proper citations demonstrate academic rigor and acknowledge dependencies
• Better Accessibility: Descriptive alt text improves experience for users with screen readers
• Professional Standards: Aligns with best practices for open-source project documentation

All changes maintain the existing content structure and formatting while adding these enhancements in a minimal, surgical manner.

Original prompt

The current README file for the Code Origin Detector lacks a table of contents and citations to enhance its usability and credibility. To improve the project's documentation and make it more professional, we need to update the README file with the following changes:

1. Add a structured Table of Contents at the beginning of the README to help users navigate the document easily.
2. Include citations or references for any external tools, libraries, or research materials mentioned.
3. Ensure that any images, examples, or sections referenced are properly linked and described.
4. Maintain a clean and professional formatting style that aligns with standard open-source project documentation practices.

This pull request was created as a result of the following prompt from Copilot chat.

The current README file for the Code Origin Detector lacks a table of contents and citations to enhance its usability and credibility. To improve the project's documentation and make it more professional, we need to update the README file with the following changes:

1. Add a structured Table of Contents at the beginning of the README to help users navigate the document easily.
2. Include citations or references for any external tools, libraries, or research materials mentioned.
3. Ensure that any images, examples, or sections referenced are properly linked and described.
4. Maintain a clean and professional formatting style that aligns with standard open-source project documentation practices.

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