Contributed to the IntensiveCoLearning/Optimism repository by delivering a comprehensive documentation update focused on onboarding and knowledge transfer. Enhanced the wuyanhui.md file with clear, structured Markdown to introduce Optimism, explain basic concepts, outline Ethereum scalability challenges, and provide an overview of Layer 2 solutions. Emphasized technical writing best practices to ensure accessibility for new learners and contributors, reducing ramp-up time for the project’s learning track. The work prioritized clarity and maintainability, translating complex blockchain topics into approachable material. No bug fixes were addressed during this period, as efforts centered on documentation quality and effective communication within the repository.