Update README and add MIT License

Author: yasulab

README.md

@@ -1,34 +1,25 @@
-# coderdojo.jp
+# CoderDojo Japan
 
 Official website of CoderDojo Japan integrated with Rails-based CMS (Scrivito)
 
 - 本番環境: http://coderdojo.jp (using Parse.com that will be shutdown on 2017 January)
   - GitHub: https://github.com/coderdojo-japan/web
-- デモ環境: http://coderdojo-japan.herokuapp.com/
+- デモ環境: http://coderdojo-japan.herokuapp.com/ (must be switched before the shutdown)
   - GitHub: https://github.com/yasslab/coderdojo.jp
 
-## TODO
+## Copyright
 
-This README would normally document whatever steps are necessary to get the
-application up and running.
+Initially developed by [YassLab](http://yasslab.jp/) in 2016,  
+and passed to [CoderDojo Japan](http://coderdojo.jp/) in 2017.  
+Now published under MIT License.
 
-Things you may want to cover:
+```
+The MIT License (MIT)
+Copyright (c) 2016 CoderDojo Japan
 
-* Ruby version
+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:
 
-* System dependencies
-
-* Configuration
-
-* Database creation
-
-* Database initialization
-
-* How to run the test suite
-
-* Services (job queues, cache servers, search engines, etc.)
-
-* Deployment instructions
-
-* ...
+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.
+```