nfs: new subdir Documentation/filesystems/nfs

We're adding enough nfs documentation that it may as well have its own
subdirectory.

Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX
new file mode 100644
index 0000000..6ff3d21
--- /dev/null
+++ b/Documentation/filesystems/nfs/00-INDEX
@@ -0,0 +1,12 @@
+00-INDEX
+	- this file (nfs-related documentation).
+Exporting
+	- explanation of how to make filesystems exportable.
+nfs.txt
+	- nfs client, and DNS resolution for fs_locations.
+nfs41-server.txt
+	- info on the Linux server implementation of NFSv4 minor version 1.
+nfs-rdma.txt
+	- how to install and setup the Linux NFS/RDMA client and server software
+nfsroot.txt
+	- short guide on setting up a diskless box with NFS root filesystem.