integrate applies_to into the sentence

Author: pebrc

deploy-manage/deploy/cloud-on-k8s/configuration-fleet.md

@@ -148,7 +148,7 @@ By default, every reference targets all instances in your {{es}}, {{kib}} and {{
 
 In contrast to {{agents}} in standalone mode, the configuration is managed through {{fleet}}, and it cannot be defined through `config` or `configRef` elements with a few exceptions.
 
-One of those exceptions is the configuration of providers as described in [advanced Agent configuration managed by Fleet](/reference/fleet/advanced-kubernetes-managed-by-fleet.md). When {{agent}} is managed by {{fleet}} and is orchestrated by ECK, the configuration of providers can simply be done through the `.spec.config` element in the Agent resource {applies_to}`stack: ga 8.13`:
+One of those exceptions is the configuration of providers as described in [advanced Agent configuration managed by Fleet](/reference/fleet/advanced-kubernetes-managed-by-fleet.md). When {{agent}} is managed by {{fleet}} and is orchestrated by ECK, the configuration of providers can simply be done through the `.spec.config` element in the Agent resource as of {applies_to}`stack: ga 8.13`:
 
 ```yaml
 apiVersion: agent.k8s.elastic.co/v1alpha1