Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Refactor README.md to streamline feature descriptions and enhance clarity. Consolidated sections for SDD 2.5, emphasizing quick features, PRD integration, and complex feature requirements. Improved formatting by removing tables and using bullet points for better readability and flow.

Update documentation across multiple files to enhance implementation guidelines and tracking. Added recent improvements to README.md, detailed execution rules for todo-lists in implement.md and sdd-system.mdc, and introduced a new implementation tracking section in feature-brief-v2.md. Emphasized the importance of systematic execution and documentation of blockers.

Revise README.md and sdd-system.mdc to introduce SDD 2.5, featuring a streamlined command system for rapid development. Updated command descriptions, added new workflows for brief planning and living documentation, and clarified when to use full SDD 2.0 for complex features. Enhanced templates and configuration for improved usability.

Expand README.md to include detailed scenarios for using SDD 2.0, highlighting when to apply the methodology. Added sections for existing projects and PRD-based development, along with practical examples and insights to guide users in leveraging SDD effectively.

Revise README.md and sdd-system.mdc to introduce the Enhanced 5-Command System (SDD 2.0). Updated command descriptions, added a new research phase, and improved workflow structure. Enhanced clarity with detailed examples and purpose for each command, ensuring a comprehensive guide for users.

Enhance README.md with a comprehensive overview of the Spec-Driven Development (SDD) toolkit for Cursor IDE. Added sections for key features, quick start guide, detailed command descriptions, and best practices. Improved formatting with tables and visual elements for better clarity and engagement.

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