doc: Added index tag.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>

diff --git a/doc/rbd/rbd-ko.rst b/doc/rbd/rbd-ko.rst
index 0d76bfcf6dc9f99c45ddc7c7dcaf93af2e3a3d99..c60557baaec76d026f5b0725bc1946c69779e2a2 100644 (file)
--- a/doc/rbd/rbd-ko.rst
+++ b/doc/rbd/rbd-ko.rst
@@ -2,6 +2,8 @@
  Kernel Module Operations
 ==========================
 
+.. index:: Ceph Block Device; kernel module
+
 .. important:: To use kernel module operations, you must have a running Ceph cluster.
 
 Load the Ceph RBD Module