README.md in groonga-client-model-0.9.7 vs README.md in groonga-client-model-0.9.8

@@ -6,26 +6,38 @@
 
 ## Description
 
 Groonga-client-model is a model interface for groonga-client.
 
-## Install
+## Usage
 
-    % gem install groonga-client-model
+Add the following to your `Gemfile`:
 
-## Usage
+```ruby
+gem "groonga-client-model"
+```
 
 TODO
 
 ## Dependencies
 
 * Ruby
-* groonga-client
 
+* [groonga-client](https://github.com/ranguba/groonga-client)
+
+* Active Model
+
 ## Mailing list
 
 * English: [[e-mail]](https://lists.sourceforge.net/lists/listinfo/groonga-talk)
+
 * Japanese: [[e-mail]](http://lists.osdn.me/mailman/listinfo/groonga-dev)
+
+## Chat
+
+* English: [groonga/en on Gitter](https://gitter.im/groonga/en)
+
+* Japanese: [groonga/ja on Gitter](https://gitter.im/groonga/ja)
 
 ## Authors
 
 * Kouhei Sutou \<[e-mail]\>