Worked on improving documentation for the VictoriaMetrics/VictoriaMetrics repository, focusing on aligning histogram aggregation guidance with the current system behavior. Updated the recommended output from 'total' to 'rate_sum' in the Markdown-based documentation, ensuring users receive accurate instructions and reducing potential confusion. Addressed a missing or incorrect link related to histogram aggregation, further enhancing the clarity and usability of the documentation. Applied technical writing and documentation skills to adhere to project contribution guidelines, streamlining onboarding for new users. The work emphasized precision and compliance, resulting in more reliable reference materials for both existing and prospective users of the project.