Merge pull request #578 from babico/master

Update NGX Storage Driver feature information

book/src/drivers.md

@@ -87,7 +87,7 @@ Name | CSI Driver Name | Compatible with CSI Version(s) | Description | Persiste
 [NexentaStor File Storage](https://github.com/Nexenta/nexentastor-csi-driver) | `nexentastor-csi-driver.nexenta.com` | v1.0, v1.1, v1.2 | A Container Storage Interface (CSI) Driver for NexentaStor  File Storage | Persistent | Read/Write Multiple Pods | Yes | Snapshot, Expansion, Cloning, Topology
 [NexentaStor Block Storage](https://github.com/Nexenta/nexentastor-csi-driver-block) | `nexentastor-block-csi-driver.nexenta.com` | v1.0, v1.1, v1.2 | A Container Storage Interface (CSI) Driver for NexentaStor over iSCSI protocol | Persistent | Read/Write Multiple Pods | Yes | Snapshot, Expansion, Cloning, Topology, Raw block
 [NFS](https://github.com/kubernetes-csi/csi-driver-nfs) | `nfs.csi.k8s.io` | v1.0 | This driver allows Kubernetes to access NFS server on Linux node.  | Persistent | Read/Write Multiple Pods | Yes | 
-[NGX Storage Block Storage](https://github.com/NGXStorage/iscsi-csi-ngxstorage-driver) | `iscsi.csi.ngxstorage.com` | v1.8.0 | A Container Storage Interface (CSI) Driver for NGXStorage over iSCSI protocol | Persistent | Read/Write Single Pod | Yes | Raw Block, Expansion
+[NGX Storage Block Storage](https://github.com/NGXStorage/iscsi-csi-ngxstorage-driver) | `iscsi.csi.ngxstorage.com` | v1.8.0 | A Container Storage Interface (CSI) Driver for NGXStorage over iSCSI protocol | Persistent | Read/Write Single Pod | Yes | Raw Block, Expansion, Snapshot
 [Nutanix](https://github.com/nutanix/csi-plugin) | `csi.nutanix.com` | v0.3, v1.0, v1.2 | A Container Storage Interface (CSI) Driver for Nutanix | Persistent | "Read/Write Single Pod" with Nutanix Volumes and "Read/Write Multiple Pods" with Nutanix Files | Yes | Raw Block, Snapshot, Expansion, Cloning
 [OpenEBS](https://github.com/openebs/csi)| `cstor.csi.openebs.io` | v1.0 | A Container Storage Interface (CSI) Driver for  [OpenEBS](https://www.openebs.io/)| Persistent | Read/Write Single Pod | Yes | Expansion, Snapshot, Cloning
 [Open-E](https://github.com/open-e/JovianDSS-KubernetesCSI) | `com.open-e.joviandss.csi` | v1.0 | A Container Storage Interface (CSI) Driver for Open-E JovianDSS Storage  | Persistent | Read/Write Single Pod | Yes | Snapshot, Cloning