Updates to the iSCSI docs following kube-e2e debugging (#1185)

ee/ucp/kubernetes/storage/use-iscsi.md

@@ -101,7 +101,7 @@ Using the instructions in the [UCP configuration file](https://docs.docker.com/e
 help topic, update the UCP configuration file with the following options:
 
 - `--storage-iscsi=true`: enables ISCSI based Persistent Volumes in Kubernetes.
-- `--iscsiadm-path=<path>`: specifies the path of the iscsiadm binary on the host. Default value is "/usr/sbin/iscsiadm".
+- `--iscsiadm-path=<path>`: specifies the absolute path of the iscsiadm binary on the host. Default value is "/usr/sbin/iscsiadm".
 - `--iscsidb-path=<path>`: specifies the path of the iscsi database on the host. Default value is “/etc/iscsi”.
 
 ### In-tree iSCSI volumes
@@ -220,11 +220,11 @@ perform the following steps:
         kind: PersistentVolumeClaim
         apiVersion: v1
         metadata:
-            name: iscsi-claim
-        Spec:
-            storageClassName: “iscsi-targetd-vg-targetd”
-            accessModes:
-               - ReadWriteOnce
+          name: iscsi-claim
+        spec:
+          storageClassName: "iscsi-targetd-vg-targetd"
+          accessModes:
+          - ReadWriteOnce
           resources:
             requests:
               storage: 100Mi
@@ -275,11 +275,11 @@ perform the following steps:
                  - name: nginx
                    image: nginx
                    ports:
-                     - name: nginx
-                       containerPort: 80
+                   - name: nginx
+                     containerPort: 80
                    volumeMounts:
-                       - name: iscsi
-                         mountPath: "/usr/share/nginx/html"
+                   - name: iscsi
+                     mountPath: "/usr/share/nginx/html"
                  volumes:
                  - name: iscsi
                    persistentVolumeClaim: