Heitor worked on the ruby/www.ruby-lang.org repository, focusing on improving documentation quality and maintainability. Over the course of one month, he addressed a key issue by removing outdated RubyDocs.org links and related references from multiple language documentation files. Using Markdown and leveraging his skills in content management and documentation, Heitor ensured that all external resources now point to current and relevant Ruby documentation. This targeted cleanup enhanced user navigation and reduced confusion, resulting in more accurate and consistent documentation. While no new features were released, his work contributed to a more reliable and user-friendly documentation experience for the community.