Worked on the mybatis/mybatis-3 repository to enhance the clarity of documentation related to the DB_VENDOR databaseIdProvider’s return behavior. Focused on technical writing and documentation skills, the developer identified and resolved a documentation bug by updating Markdown files to better explain how property values are determined based on the database product name. This targeted fix aligned the documentation with actual implementation details and addressed potential edge cases, reducing confusion for contributors and maintainers. By improving the accuracy and readability of the documentation, the work supported easier onboarding and minimized support queries, contributing to the maintainability of the core repository.