Contributed a comprehensive documentation package to the HeroFan71/Xquery_Pr-ctica repository, focusing on XQuery’s let clause and FLWOR expressions. The work involved consolidating and expanding technical guidance, providing practical examples, and improving navigation to streamline onboarding for new users. Using Markdown, XML, and XQuery, the developer iteratively refined the documentation through over 15 commits, ensuring clarity, structure, and version control. The approach emphasized best practices in technical writing, content organization, and asset management, while also considering cross-language localization. No bug fixes were recorded, as efforts centered on delivering a cohesive, reusable reference to support developer understanding and adoption.