:copyright: License project under GPLv3

README.md

@@ -18,3 +18,6 @@ Aim, shoot and combo! Try to high-score before you are overwhelmed by bricks! Ea
 
 Two games of this game where concurrently developed : this one is made with Godot engine, the other one was made with Haskell by a friend.
 
+## License
+
+GNU GPLv3, see `LICENSE.txt`.