Antoine Pultier focused on enhancing documentation quality in the grafana/prometheus repository by improving Markdown formatting to align with markdownlint standards. He systematically added trailing punctuation to documentation headings, which addressed lint warnings and promoted consistency across the project’s documentation. This work, carried out using Markdown and documentation review skills, aimed to make the documentation more readable and accessible for both users and contributors. Although the scope was limited to a single feature over one month, Antoine’s attention to detail in documentation hygiene contributed to smoother onboarding processes and reduced potential formatting issues, demonstrating a methodical approach to open-source documentation maintenance.