Worked on the everycure-org/matrix repository to improve onboarding documentation by removing outdated references and aligning materials with the project’s current approach. Focused on Markdown-based documentation, the work involved identifying and fixing a bug where legacy information about Working Group 3: Validation persisted in onboarding guides. By updating index.md and related files, the developer ensured new contributors receive accurate, up-to-date information, reducing confusion during onboarding. All changes were clearly documented in the commit history, supporting future audits and reviews. This targeted documentation cleanup maintained repository health and streamlined collaboration, leveraging skills in documentation management and version control workflows.