StorageObjectInUseProtection is GA

Update feature gate reference for 1.11

content/en/docs/reference/feature-gates.md

@@ -1,14 +1,13 @@
 ---
 title: Feature Gates
-content_template: templates/concept
 ---
 
-{{% capture overview %}}
+{% capture overview %}
 This page contains an overview of the various feature gates an administrator
 can specify on different Kubernetes components.
-{{% /capture %}}
+{% endcapture %}
 
-{{% capture body %}}
+{% capture body %}
 
 ## Overview
 
@@ -80,7 +79,8 @@ different Kubernetes components.
 | `RunAsGroup` | `false` | Alpha | 1.10 | |
 | `ScheduleDaemonSetPods` | `false` | Alpha | 1.10 | |
 | `ServiceNodeExclusion` | `false` | Alpha | 1.8 | |
-| `StorageObjectInUseProtection` | `true` | Beta | 1.10 | |
+| `StorageObjectInUseProtection` | `true` | Beta | 1.10 | 1.10 |
+| `StorageObjectInUseProtection` | `true` | GA | 1.11 | |
 | `StreamingProxyRedirects` | `true` | Beta | 1.5 | |
 | `SupportIPVSProxyMode` | `false` | Alpha | 1.8 | 1.8 |
 | `SupportIPVSProxyMode` | `false` | Beta | 1.9 | 1.9 |
@@ -120,10 +120,9 @@ A *Beta* feature means:
   incompatible changes in subsequent releases. If you have multiple clusters
   that can be upgraded independently, you may be able to relax this restriction.
 
-{{< note >}}
 **Note:** Please do try *Beta* features and give feedback on them!
 After they exit beta, it may not be practical for us to make more changes.
-{{< /note >}}
+{: .note}
 
 A *GA* feature is also referred to as a *stable* feature. It means:
 
@@ -221,6 +220,6 @@ Each feature gate is designed for enabling/disabling a specific feature:
   enables the usage of [`local`](/docs/concepts/storage/volumes/#local) volume
   type when used together with the `PersistentLocalVolumes` feature gate.
 
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-
+{% endcapture %}
 
+{% include templates/concept.md %}