model/nfs/registry.yaml: top level group should be registry.nfs only (#2808)

Author: johnleslie

docs/registry/attributes/nfs.md

@@ -3,9 +3,9 @@
 
 # NFS
 
-## NFS Server Reply Cache Attributes
+## NFS Attributes
 
-NFS Server replies check a Reply Cache (repcache), which can have one of 3 result states
+Describes NFS Attributes
 
 | Attribute | Type | Description | Examples | Stability |
 |---|---|---|---|---|

model/nfs/registry.yaml

@@ -1,9 +1,9 @@
 groups:
-  - id: registry.nfs.server.repcache.status
+  - id: registry.nfs
     type: attribute_group
-    display_name: NFS Server Reply Cache Attributes
+    display_name: NFS Attributes
     brief: >
-      NFS Server replies check a Reply Cache (repcache), which can have one of 3 result states
+      Describes NFS Attributes
     attributes:
       - id: nfs.server.repcache.status
         type: string