Jacob Baarendse contributed to the readtu/StoreS25 repository by enhancing project documentation, specifically updating the README.md to include new contributor information. He focused on improving onboarding and attribution processes, establishing a repeatable workflow for future documentation updates. Using Markdown as the primary language, Jacob demonstrated disciplined Git practices by delivering a single-purpose, well-documented commit with a clear message. His work addressed the need for accurate and up-to-date contributor records, supporting collaboration within the project. While the scope was limited to documentation and did not involve bug fixes or feature development, the update maintained high standards for clarity and process consistency.