--- a/rapper.xml	Mon Sep 30 23:21:40 2013 -0400
+++ b/rapper.xml	Mon Sep 30 23:21:54 2013 -0400
@@ -1,5 +1,5 @@
 <tool id="rapper" name="RDF Format" version="0.1">
-  <description>Converter (Raptor Rapper)</description>
+  <description>Converter (Rapper)</description>
   <command>
     /Users/Ryota/Softwares/raptor/raptor2-2.0.9/bin/rapper -q $input_file -i $input_format -o $output_format > $output_file
   </command>
@@ -20,6 +20,12 @@
     <data name="output_file" format="tabular" label="${tool.name} on ${on_string}"/>
   </outputs>
   <help>
+
 **What it does**
+
+This tool converts RDF format from/to N-Triples, Turtle, RDF/XML with Raptor's Rapper.
+
+To setup Rapper, please refer README.txt in this tool's directory.
+
   </help>
 </tool>