Juanma Garrido focused on improving documentation within the WordPress/gutenberg repository, targeting developer onboarding and clarity. He updated Markdown files by correcting a broken link in README.md and removing an outdated reference from javascript-in-the-block-editor.md, ensuring contributors access accurate and current information. Using disciplined version control, Juanma tracked all changes in a single, well-documented pull request, maintaining a clear project history. His work emphasized documentation quality and usability, leveraging skills in Markdown and technical writing. While the scope was limited to a single feature, the targeted updates reduced confusion for new developers and streamlined the onboarding process within the project.