Yoann worked on the symfony/symfony-docs repository, focusing on improving the accuracy of rate limiter documentation and configuration. He identified and corrected a misnamed rate limiting configuration, updating references from 'two_per_minute' to 'five_per_hour' to ensure consistency between documentation and actual system behavior. Using reStructuredText and leveraging his technical writing and documentation skills, Yoann updated both code comments and user-facing docs to prevent potential misconfigurations and runtime issues. His work addressed a specific bug rather than introducing new features, demonstrating attention to detail and a methodical approach to maintaining clarity and reliability in technical documentation and configuration.