Tidy docs about EndpointSlice & related features

Co-authored-by: Rey Lejano <52760880+reylejano@users.noreply.github.com>

content/en/docs/tasks/administer-cluster/enabling-topology-aware-hints.md

@@ -10,8 +10,9 @@ min-kubernetes-server-version: 1.21
 {{< feature-state for_k8s_version="v1.21" state="alpha" >}}
 
 _Topology Aware Hints_ enable topology aware routing with topology hints
-included in EndpointSlices. This approach tries to keep traffic close to where
-it originated from. This can result in decreased costs and improved performance.
+included in {{< glossary_tooltip text="EndpointSlices" term_id="endpoint-slice" >}}.
+This approach tries to keep traffic close to where it originated from;
+you might do this to reduce costs, or to improve network performance.
 
 ## {{% heading "prerequisites" %}}
 
@@ -19,13 +20,13 @@ it originated from. This can result in decreased costs and improved performance.
 
 The following prerequisite is needed in order to enable topology aware hints:
 
-* {{< glossary_tooltip text="Kube-proxy" term_id="kube-proxy" >}} running in
+* Configure the {{< glossary_tooltip text="kube-proxy" term_id="kube-proxy" >}} to run in
   iptables mode or IPVS mode
 * Ensure that you have not disabled EndpointSlices
 
 ## Enable Topology Aware Hints
 
-To enable service topology, enable the `TopologyAwareHints` [feature
+To enable service topology hints, enable the `TopologyAwareHints` [feature
 gate](docs/reference/command-line-tools-reference/feature-gates/) for the
 kube-apiserver, kube-controller-manager, and kube-proxy: