diff -r 5e51c9eb5e83 -r ecb067198349 doc/groups.dox
--- a/doc/groups.dox	Fri Mar 24 20:27:42 2006 +0000
+++ b/doc/groups.dox	Mon Mar 27 08:01:10 2006 +0000
@@ -159,12 +159,31 @@
 */
 
 /**
-@defgroup io_group Input Output
+@defgroup io_group Input-Output
 Here you can find tools for imporing and exporting graphs and graph related
 data
 */
 
 /**
+@defgroup section_io Section readers and writers
+@ingroup io_group
+\brief Section readers and writers for lemon Input-Output.
+
+Here you can find which section readers and writers can attach to
+the LemonReader and LemonWriter.
+*/
+
+/**
+@defgroup item_io Item Readers and Writers
+@ingroup io_group
+\brief Item readers and writers for lemon Input-Output.
+
+The Input-Output classes can handle more data type by example
+as map or attribute value. Each of these should be written and
+read some way. The module make possible to do this.  
+*/
+
+/**
 @defgroup concept Concepts
 \brief Skeleton classes and concept checking classes