Update Documentation

## Background
For Version 0.1.0 InDev of Tessitura, comprehensive and clear documentation is essential for users to understand how to install, configure, and use the application effectively. As we implement the core directory mapping functionality, we need to ensure that documentation is developed alongside the code.

## Description
Create comprehensive user documentation that covers installation procedures, usage instructions, and practical examples. This documentation should enable new users to quickly understand how to use the application while also serving as a reference for more experienced users seeking specific information.

## Requirements
- Create a well-structured README.md that includes:
- Project overview and purpose
- Installation instructions for different platforms
- Basic usage examples
- Available command-line options and flags
- Common workflows and use cases
- Troubleshooting section
- Develop additional documentation:
- Quick-start guide
- Configuration options reference
- Examples of different output formats
- Performance considerations for large directories
- Contributing guidelines
- Include visual elements:
- Screenshots of example outputs
- Command syntax diagrams
- Directory structure visualizations

## Technical Notes
- Write documentation in Markdown format for GitHub compatibility
- Use consistent formatting and style throughout all documents
- Include properly formatted code blocks for commands and examples
- Consider implementing a documentation generation tool if appropriate
- Ensure all command-line options are thoroughly documented
- Include version information in the documentation
- Organize documentation with clear headings and a logical structure
- Create a separate CONTRIBUTING.md for development-related documentation

## Acceptance Criteria
- README.md provides clear installation instructions for all supported platforms
- Documentation includes basic usage examples with expected outputs
- All command-line options and flags are documented with explanations
- Common error messages and troubleshooting steps are included
- Documentation is well-organized with a consistent style
- Examples cover both simple and advanced use cases
- Installation instructions are verified to work on all supported platforms
- Documentation is free of spelling and grammatical errors
- Links to resources or related documentation are functional

## Estimated Effort
Medium (2-3 days)