Update metrics.md (#32058)

Author: maycmlee

content/en/observability_pipelines/monitoring/metrics.md

@@ -51,7 +51,7 @@ Bytes in per second
 : **Available for**: Sources, processors, and destinations.
 
 Bytes out per second
-: **Metric**: `pipelines.component_sent_event_bytes_total`
+: **Metric**: `pipelines.component_sent_events_total`
 : **Description**: The number of bytes the component sends to the destinations.
 : **Available for**: Sources, processors, and destinations.
 
@@ -89,4 +89,4 @@ Utilization
 [3]: /getting_started/monitors/
 [4]: /getting_started/tagging/
 [5]: https://app.datadoghq.com/metric/summary
-[6]: https://docs.datadoghq.com/account_management/billing/usage_metrics/
+[6]: https://docs.datadoghq.com/account_management/billing/usage_metrics/