Michael Arguin updated the developer documentation for the vercel/example-marketplace-integration repository, focusing on aligning the README with the project’s current architecture. He revised references and assets to accurately reflect Upstash Redis as the state store, ensuring that the documentation matched the underlying data-store implementation while leaving the core functionality unchanged. Using Markdown and leveraging his documentation skills, Michael’s work improved onboarding for new developers and enhanced cross-team understanding of the integration points. By clarifying the architecture and reducing ambiguity, his updates supported future migration planning and helped mitigate integration risks, demonstrating careful attention to detail and a methodical approach to documentation.