Worked on the G-Core/product-documentation repository to improve the accuracy of API documentation for cost reporting. Addressed a documentation bug by updating the Cost Report API reference, ensuring that the link now directs users to CostReportResourcesHandler.post instead of the outdated BillingReportHandler.post. This change aligned the documentation with the actual backend code path, reducing confusion for developers and minimizing support requests. The update was implemented in Markdown, leveraging strong documentation skills to clarify technical details for end users. The work focused on maintaining clear, reliable documentation and demonstrated attention to detail in aligning written guides with the underlying API structure.