Martijn Nap enhanced the MicrosoftDocs/azure-monitor-docs repository by addressing a documentation issue related to OpenTelemetry sampling configuration. He identified and corrected the sampler type naming, updating it from microsoft.fixed.percentage to microsoft.fixed_percentage to reflect current OpenTelemetry conventions. Working primarily with Markdown and leveraging his expertise in Azure Monitor and documentation standards, Martijn ensured that the guidance accurately described the required configuration, reducing the risk of user error in Azure Monitor sampling setups. His targeted edit preserved the integrity of the documentation while supporting future improvements, demonstrating careful attention to detail and a clear understanding of the technical context.