style-adjust (kubernetes#8021)

Shen Yuanyu · k8s-ci-robot · commit a1a3010a001b · 2018-04-09T07:13:08.000-07:00
diff --git a/docs/concepts/overview/object-management-kubectl/imperative-command.md b/docs/concepts/overview/object-management-kubectl/imperative-command.md
@@ -75,6 +75,7 @@ Setting this aspect may set different fields for different object types:
 
 **Note**: In Kubernetes version 1.5, not every verb-driven command has an
 associated aspect-driven command.
+{: .note}
 
 The `kubectl` tool supports these additional ways to update a live object directly,
 however they require a better understanding of the Kubernetes object schema.
