Fix invalid multi-line YAML indentation

Author: jboxman

modules/nw-sriov-network-attachment.adoc

@@ -59,13 +59,13 @@ spec:
   resourceName: net1
   networkNamespace: project2
   ipam: |-
-  {
-    "type": "host-local",
-    "subnet": "10.56.217.0/24",
-    "rangeStart": "10.56.217.171",
-    "rangeEnd": "10.56.217.181",
-    "gateway": "10.56.217.1"
-  }
+    {
+      "type": "host-local",
+      "subnet": "10.56.217.0/24",
+      "rangeStart": "10.56.217.171",
+      "rangeEnd": "10.56.217.181",
+      "gateway": "10.56.217.1"
+    }
 ----
 
 . To create the object, enter the following command: