add an introduction line before the list to make doxygen happy

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@1230 48e7efb5-ca39-0410-a469-dd3cf9ba447f

diff --git a/doc/module-xbt.doc b/doc/module-xbt.doc
index 7093463..476dd76 100644 (file)
--- a/doc/module-xbt.doc
+++ b/doc/module-xbt.doc
@@ -1,5 +1,6 @@
 /** @addtogroup XBT_API
  *
+ *  The XBT functionalities fall into several categories:
  *   - Portability support. 
  *     - \ref XBT_syscall
  *   - Grounding features