During May 2025, Tianxing Chen enhanced the TianxingChen/Embodied-AI-Guide repository by developing comprehensive documentation for the Dual-System Hierarchical VLA paradigm. Focusing on Markdown and technical writing, Tianxing detailed the distinctions between System 1 fast reaction and System 2 deep thinking, describing variations in model structure, communication protocols, and training data. The work included curating and linking relevant industry and academic references, as well as fixing a broken link to ensure reliable access to external resources. This documentation improved onboarding and cross-team collaboration, providing a clear, research-backed foundation for evidence-based design decisions within the Embodied-AI-Guide project.