tree DOC minor enhancements
Fixes #550
diff --git a/src/tree_data.h b/src/tree_data.h
index a7e74ee..e5c46ee 100644
--- a/src/tree_data.h
+++ b/src/tree_data.h
@@ -162,7 +162,8 @@
* ::lyd_node_leaf_list or ::lyd_node_anydata structures. This structure fits only to #LYS_CONTAINER, #LYS_LIST and
* #LYS_CHOICE values.
*
- * To traverse through all the child elements or attributes, use #LY_TREE_FOR or #LY_TREE_FOR_SAFE macro.
+ * To traverse all the child elements or attributes, use #LY_TREE_FOR or #LY_TREE_FOR_SAFE macro. To traverse
+ * the whole subtree, use #LY_TREE_DFS_BEGIN macro.
*/
struct lyd_node {
struct lys_node *schema; /**< pointer to the schema definition of this node */