--- a/src/database/database.cpp	Fri Feb 11 12:02:09 2022 +0100
+++ b/src/database/database.cpp	Fri Feb 11 14:22:26 2022 +0100
@@ -1,7 +1,21 @@
+/**
+ * database.cpp is part of bmsapp.
+ *
+ * bmsapp 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.
+ *
+ * bmsapp 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/>.
+ */
+#include "database.h"
 
-// from: https://evileg.com/en/post/93/
-
-#include "database.h"
 
 DataBase::DataBase(QObject *parent) : QObject(parent)
 {