During October 2025, Frefreak Zxy updated the fluent/fluent-bit-docs repository to clarify the usage of the add_label feature for OpenTelemetry integrations. By revising Markdown documentation, Frefreak explained how custom labels can be attached to both metrics and logs as resource attributes, and detailed that multiple add_label fields may be specified for each label. This documentation improvement addressed common misconfigurations and reduced support queries, making onboarding easier for OpenTelemetry users. The work demonstrated a focused application of documentation skills and Markdown, with a narrow but thorough scope that aligned the documentation closely with actual feature behavior in the codebase.