During the month, contributed to the zio/zio repository by addressing a documentation bug related to running tagged tests via the command line. Focused on improving the Markdown-based documentation, the work clarified the correct CLI syntax by ensuring the required -- separator appears before test tags, which enables proper execution of slow tests. This change reduced confusion for users and improved the reliability of test runs, supporting faster onboarding for new contributors. The approach demonstrated attention to CLI semantics, open-source collaboration, and best practices in documentation. Git commit traceability was maintained throughout, ensuring clear project history and accountability for the update.