Sergio Rodriguez Rivero updated the presentaciones.md file in the DanielaS-Tochi/github-microsoft-codigo-facilito repository to enhance author visibility and onboarding clarity. He consolidated two separate commits into a single, user-facing feature that added his professional background and integrated social links for Behance and LinkedIn. This work focused on documentation-driven development using Markdown, emphasizing clear commit hygiene and traceability within Git workflows. By refining project documentation and aligning updates under one feature, Sergio improved the accuracy and accessibility of author information. The update streamlined onboarding for new contributors and demonstrated attention to collaborative documentation practices and personal branding within technical projects.