docs: otel use anchor instead of path (#66592)

Author: Netail

docs/02-app/01-building-your-application/06-optimizing/10-open-telemetry.mdx

@@ -180,7 +180,7 @@ Once you have your collector up and running, you can deploy your Next.js app to
 
 ### Custom Exporters
 
-OpenTelemetry Collector is not necessary. You can use a custom OpenTelemetry exporter with [`@vercel/otel`](#using-vercelotel) or [manual OpenTelemetry configuration](/docs/pages/building-your-application/optimizing/open-telemetry#manual-opentelemetry-configuration).
+OpenTelemetry Collector is not necessary. You can use a custom OpenTelemetry exporter with [`@vercel/otel`](#using-vercelotel) or [manual OpenTelemetry configuration](#manual-opentelemetry-configuration).
 
 ## Custom Spans