Change LICENSE

Author: syuu1228

LICENSE

@@ -1,7 +1,2 @@
-Copyright (c) 2014 Takuya ASADA. 
-Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License,
-Version 1.3 or any later version published by the Free Software
-Foundation; with no Invariant Sections, no Front-Cover Texts and
-no Back-Cover Texts.  A copy of the license is included in the
-section entitled "GNU Free Documentation License".
+Copyright (c) 2014 Takuya ASADA.
+全ての原稿データ は クリエイティブ・コモンズ 表示 - 継承 4.0 国際 ライセンスの下に提供されています。