[zh] Update flexvolume

[zh] Update flexvolume

content/zh/docs/reference/glossary/flexvolume.md

@@ -4,7 +4,7 @@ id: flexvolume
 date: 2018-06-25
 full_link: /zh/docs/concepts/storage/volumes/#flexvolume
 short_description: >
-  Flexvolume 是创建树外卷插件的一种接口。
+  FlexVolume 是一个已弃用的接口，用于创建树外卷插件。
   {{< glossary_tooltip text="容器存储接口（CSI）" term_id="csi" >}}
   是比 Flexvolume 更新的接口，它解决了 Flexvolumes 的一些问题。
 
@@ -19,15 +19,15 @@ id: flexvolume
 date: 2018-06-25
 full_link: /docs/concepts/storage/volumes/#flexvolume
 short_description: >
-    FlexVolume is an interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
+  FlexVolume is a deprecated interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface that addresses several problems with FlexVolume.
 aka: 
 tags:
 - storage 
 -->
 <!-- 
-FlexVolume is an interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
+FlexVolume is a deprecated interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface that addresses several problems with FlexVolume.
 -->
-Flexvolume 是创建树外卷插件的一种接口。
+FlexVolume 是一个已弃用的接口，用于创建树外卷插件。
 {{< glossary_tooltip text="容器存储接口（CSI）" term_id="csi" >}}
 是比 Flexvolume 更新的接口，它解决了 Flexvolume 的一些问题。