Add ‘spec.volumeName’ to "Requesting Storage" example

tnguyen-rh · tnguyen-rh · commit d9f8886d8fea · 2016-08-02T17:31:12.000+02:00
Suggested by Brennan Vincello <bvincell@redhat.com> in <openshift#1910>.
diff --git a/dev_guide/persistent_volumes.adoc b/dev_guide/persistent_volumes.adoc
@@ -62,6 +62,7 @@ spec:
   resources:
     requests:
       storage: "5Gi"
+  volumeName: "pv0001"
 ----
 ====
 
