add MIT license

LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2008 Joe Ferris and thoughtbot, inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

@@ -123,14 +123,19 @@ Yes.
     ==> Deploying to: origin
     ==> ! Cannot deploy: "origin" remote does not point to Heroku
 
-
 ## Compatibility
+
 Tested against:
 
 * MRI 1.8.7
 * MRI 1.9.2
 * REE 1.8.7
 
 ## What's with the name?
+
 Kumade ([pronunciation here](http://translate.google.com/#ja|en|熊手)) means
 "bamboo rake" in Japanese.
+
+## License
+
+kumade is Copyright © thoughtbot. It is free software, and may be redistributed under the terms specified in the LICENSE file.