Update storage-classes.md

Synchronize English documentation about storageclass

content/zh/docs/concepts/storage/storage-classes.md

@@ -83,7 +83,7 @@ metadata:
   name: standard
 provisioner: kubernetes.io/aws-ebs
 parameters:
-  type: gp2
+  type: gp3
 reclaimPolicy: Retain
 allowVolumeExpansion: true
 mountOptions:
@@ -430,9 +430,9 @@ parameters:
 ```
 
 <!--
-* `type`: `io1`, `gp2`, `sc1`, `st1`. See
+* `type`: `io1`, `gp2`, `gp2`, `sc1`, `st1`. See
   [AWS docs](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html)
-  for details. Default: `gp2`.
+  for details. Default: `gp3`.
 * `zone` (Deprecated): AWS zone. If neither `zone` nor `zones` is specified, volumes are
   generally round-robin-ed across all active zones where Kubernetes cluster
   has a node. `zone` and `zones` parameters must not be used at the same time.
@@ -453,8 +453,8 @@ parameters:
   encrypting the volume. If none is supplied but `encrypted` is true, a key is
   generated by AWS. See AWS docs for valid ARN value.
 -->
-* `type`：`io1`，`gp2`，`sc1`，`st1`。详细信息参见
-  [AWS 文档](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html)。默认值：`gp2`。
+* `type`：`io1`，`gp2`，`gp3`，`sc1`，`st1`。详细信息参见
+  [AWS 文档](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html)。默认值：`gp3`。
 * `zone`(弃用)：AWS 区域。如果没有指定 `zone` 和 `zones`，
   通常卷会在 Kubernetes 集群节点所在的活动区域中轮询调度分配。
   `zone` 和 `zones` 参数不能同时使用。
@@ -695,7 +695,7 @@ provisioner: example.com/external-nfs
 parameters:
   server: nfs-server.example.com
   path: /share
-  readOnly: false
+  readOnly: "false"
 ```
 
 <!-- 
@@ -1293,7 +1293,7 @@ parameters:
   storagePool: sp1
   storageMode: ThinProvisioned
   secretRef: sio-secret
-  readOnly: false
+  readOnly: "false"
   fsType: xfs
 ```