Update README.md

README.md

@@ -16,3 +16,20 @@ When you've loaded the game into Greenfoot, you click "Compile", then "Run" and
 ## To do:
 * Decorations (well, they should get images, otherwise they don't really contribute to the game)
 * Migrate to a real engine as the deadline has passed anyway (godot? seems pretty decent and it's cross platform. Or maybe something of our own, would be a nice challenge but not really results oriented. Or maybe we should just leave it.)
+
+# License for every Java source file in this git and this readme:
+
+Copyright 2014 Julian Spittel and Lukas Bürgi.
+
+AntiRPG 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/>.