graduate HPAContainerMetrics to stable

content/en/docs/reference/command-line-tools-reference/feature-gates/hpa-container-metrics.md

@@ -13,6 +13,10 @@ stages:
   - stage: beta
     defaultValue: true
     fromVersion: "1.27"
+    toVersion: "1.29"
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.30"
 ---
-Enable the `HorizontalPodAutoscaler` to scale based on
-metrics from individual containers in target pods.
+Allow {{< glossary_tooltip text="HorizontalPodAutoscalers" term_id="horizontal-pod-autoscaler" >}}
+to scale based on metrics from individual containers within target pods.

content/en/docs/tasks/run-application/horizontal-pod-autoscale.md

@@ -278,7 +278,7 @@ pod usage is still within acceptable limits.
 
 ### Container resource metrics
 
-{{< feature-state for_k8s_version="v1.27" state="beta" >}}
+{{< feature-state feature_gate_name="HPAContainerMetrics" >}}
 
 The HorizontalPodAutoscaler API also supports a container metric source where the HPA can track the
 resource usage of individual containers across a set of Pods, in order to scale the target resource.