Mention tutorial
diff --git a/README b/README
index 33091cf..5d1b5c5 100644
--- a/README
+++ b/README
@@ -263,6 +263,9 @@
 Adding Your Own Test Cases
 ++++++++++++++++++++++++++
 
+    Check the online tutorial:  
+        http://openflow.org/wk/index.php/OFTestTutorial
+
     You can:
 
         * Add cases to an existing file