During November 2024, Therandomdiy enhanced the harvard-edge/cs249r_book repository by updating its documentation to support EPUB format generation. Focusing on technical writing and documentation skills, Therandomdiy authored clear, step-by-step instructions in Markdown, guiding users through the process of rendering the book to EPUB using Quarto. This update addressed previous ambiguity around supported formats and streamlined onboarding for new contributors. The work improved cross-format usability and ensured reproducibility by providing a single, traceable commit. While the contribution was limited to one feature and did not involve bug fixes, it demonstrated attention to detail and a methodical approach to documentation quality.