Added gemnasium badge.

README.md

@@ -1,4 +1,10 @@
-# Quick Start
+Trema Tutorial
+==============
+
+[![Dependency Status](https://gemnasium.com/trema/tutorial-ja.png)](https://gemnasium.com/trema/tutorial-ja)
+
+Quick Start
+-----------
 
 	git clone git://github.com/trema/tutorial-ja.git
 	cd tutorial-ja
@@ -13,14 +19,17 @@ This will launch a local Sinatra server on port 9090. Open your browser to `loca
 Use arrow keys to navigate through the slides. Press '?' to see a help window with more key commands.
 
 
-# Printing slides (PDF)
+Printing slides (PDF)
+---------------------
 
 Try this: first `gem install pdfkit`, then visit
 
     http://localhost:9090/pdf
 
 
-# LICENSE
+LICENSE
+-------
+
 Copyright (c) 2012 Yasuhito Takamiya, Kazuya Suzuki
 
 Licensed under the GPL3 license