Update driver-parameters.md

Author: andyzhangx

docs/driver-parameters.md

@@ -28,8 +28,8 @@ kubectl create secret generic smbcreds --from-literal username=USERNAME --from-l
 ```
 
 ### Tips
-#### `subDir` parameter supports following pv/pvc metadata transform
-> if `subDir` value contains following string, it would transforms into corresponding pv/pvc name or namespace
+#### `subDir` parameter supports following pv/pvc metadata convension
+> if `subDir` value contains following string, it would be converted into corresponding pv/pvc name or namespace
  - `${pvc.metadata.name}`
  - `${pvc.metadata.namespace}`
  - `${pv.metadata.name}`
@@ -41,4 +41,4 @@ kubectl create secret generic smbcreds --from-literal username=USERNAME --from-l
 kubectl create secret generic smbcreds --from-literal username=USERNAME --from-literal password="PASSWORD" --from-literal mountOptions="dir_mode=0777,file_mode=0777,uid=0,gid=0,mfsymlinks"
 ```
 
- - set `csi.storage.k8s.io/provisioner-secret-name: "smbcreds"` in storage class
+ - set `csi.storage.k8s.io/provisioner-secret-name: "smbcreds"` in storage class