Worked on enhancing the documentation for the JuiceFS S3 Gateway, focusing on clarifying the behavior of the --keep-etag option and providing practical usage examples for enabling and retrieving ETags. Leveraged Markdown to deliver clear guidance on accessing ETags via S3 API calls and through extended attributes when xattrs are enabled, improving operator experience and supporting data integrity workflows. Addressed a formatting issue in the Chinese documentation to ensure consistency and readability. The work emphasized precise technical communication and documentation skills, contributing to the juicedata/juicefs repository and supporting users in understanding and utilizing ETag-related features effectively.