clearly state the license

1 files changed, 13 insertions, 2 deletions

diff --git a/cqrlogo.h b/cqrlogo.h
index 30d7370..7ad2d3d 100644
--- a/cqrlogo.h
+++ b/cqrlogo.h
@@ -1,8 +1,19 @@
 /*
  * (C) 2013-2020 by Christian Hesse <mail@eworm.de>
  *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
+ * 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 <https://www.gnu.org/licenses/>.
+ *
  */
 
 #ifndef _CQRLOGO_H