Worked on the checkstyle/checkstyle repository to enhance project documentation and streamline the contributor onboarding process. Focused on technical writing and documentation skills, the developer updated Markdown files to remove outdated references in the CONTRIBUTING.md and corrected a broken hyperlink in the README.md related to build instructions. This targeted update addressed a specific documentation bug, reducing confusion for new contributors and ensuring alignment with the current build process. By prioritizing clarity and accuracy in project guidelines, the work improved the overall contributor experience. The changes were implemented exclusively in Markdown, emphasizing attention to detail and a methodical approach to documentation maintenance.