Add a volume deletion node

Signed-off-by: Sherlock113 <sherlockxu@yunify.com>

content/en/docs/project-user-guide/storage/volumes.md

@@ -144,6 +144,12 @@ To delete a volume, make sure the volume is not mounted to any workload. To unmo
 
 ![delete-volume](/images/docs/project-user-guide/volume-management/volumes/delete-volume.jpg)
 
+If the status of a volume remains **Terminating** for a long time after you clicked **Delete**, manually delete it by using the following command:
+
+```bash
+kubectl patch pvc <pvc-name> -p '{"metadata":{"finalizers":null}}'
+```
+
 ### Volume features
 
 From the **More** drop-down menu, there are three additional options provided by KubeSphere based on the underlying storage plugin, also known as `Storage Capability`. Volume features include:

content/zh/docs/project-user-guide/storage/volumes.md

@@ -143,6 +143,12 @@ weight: 10310
 
 ![delete-volume](/images/docs/zh-cn/project-user-guide/volume-management/volumes/delete-volume.jpg)
 
+在您点击**删除**后，如果存储卷的状态长时间保持为**删除中**，请使用以下命令手动删除：
+
+```bash
+kubectl patch pvc <pvc-name> -p '{"metadata":{"finalizers":null}}'
+```
+
 ### 使用存储卷功能
 
 **更多操作**下拉菜单提供了三个额外功能，这些功能基于 KubeSphere 的底层存储插件 `Storage Capability`。具体如下：