Update observability/observability_enable.adoc

observability/observability_enable.adoc

@@ -581,7 +581,7 @@ spec:
 ----
 <1> Use the `observabilityAddonSpec` parameter to define the global settings for all managed clusters that have the Observability add-on enabled.
 <2> Use the `enableMetrics` parameter to indicate that the Observability add-on is enabled to push metrics to hub cluster server.
-<3> Use the `workers` parameter to increase the number of internal workers in the metric collector process. The internal workers shard federate requests made to Prometheus on your hub cluster, to the internal workers, and sends separate remote-write requests to Thanos on your hub cluster.  
+<3> Use the `workers` parameter to increase the number of internal workers in the metric collector process. The internal workers shard `/federate` endpoint requests made to Prometheus on your managed cluster, to the internal workers, and sends separate remote-write requests to Thanos on your hub cluster.  
 
 [#disabling-observability-on-a-single-cluster]
 === Disabling Observability on a single cluster