Update README.md

Author: ValentinFunk

README.md

@@ -29,5 +29,21 @@ At the moment there are only German language strings, English will be added soon
 ![Statistics](https://s3-eu-west-1.amazonaws.com/pointshop2/2016-05-18+08.02.40.jpg)
 ![Settings](https://s3-eu-west-1.amazonaws.com/pointshop2/2016-05-18+08.02.24.jpg)
 
-Licensed under GPLv3
+## License
+
+Brain Phase Android Quiz App
+    Copyright (C) 2016  Daniel Hoogen, Lars Kahra, Christian Kost, Thomas Stückel, Valentin Funk
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.