Worked on enhancing the developer experience for the pingcap/pytidb repository by delivering a comprehensive update to the TiDB client documentation. Focused on advanced filtering, the contribution introduced a new README section that clarifies operator semantics and provides practical usage examples, helping users understand and utilize features such as $eq, $gt, $gte, $lt, $lte, $in, $nin, $and, and $or. Leveraged Markdown for clear technical writing and collaborated via Git to ensure alignment with actual API capabilities. This documentation-driven approach aimed to streamline onboarding, reduce support inquiries, and strengthen code documentation practices across the repository during the development period.