Added a link to the Dash0 OTEL collector config (#6662)

Signed-off-by: Fabian Lange <lange.fabian@gmail.com>

Author: CodingFabian

docs/guides/tracing.md

@@ -49,6 +49,7 @@ even if you plan to use the default values.
 In order to send traces, you will need to set up an OpenTelemetry Collector. The collector will be able to send traces to
 multiple destinations such as [AWS X-Ray](https://aws-otel.github.io/docs/getting-started/x-ray),
 [Google Cloud](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/googlecloudexporter),
+[Dash0](https://www.dash0.com/hub/integrations/int_opentelemetry-collector/overview)
 [DataDog](https://docs.datadoghq.com/tracing/trace_collection/open_standards/otel_collector_datadog_exporter/) and
 [others](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter). OpenTelemetry Collector
 provides a [helm chart](https://github.com/open-telemetry/opentelemetry-helm-charts/tree/main/charts/opentelemetry-collector/examples/deployment-otlp-traces)