Update cheatsheet.md

更正 annotate 翻译

content/zh-cn/docs/reference/kubectl/cheatsheet.md

@@ -556,7 +556,7 @@ kubectl label pods my-pod new-label=awesome                      # 添加标签
 kubectl label pods my-pod new-label-                             # 移除标签
 kubectl label pods my-pod new-label=new-value --overwrite        # 覆盖现有的值
 kubectl annotate pods my-pod icon-url=http://goo.gl/XXBTWq       # 添加注解
-kubectl annotate pods my-pod icon-                               # 移除标签
+kubectl annotate pods my-pod icon-                               # 移除注解
 kubectl autoscale deployment foo --min=2 --max=10                # 对 "foo" Deployment 自动伸缩容
 ```