Makefile to install, and License GNU GPLv3

README.md

@@ -1,3 +1,26 @@
+<!--
+ ***************************************************************************
+ * (C)opyright 2026         by Ruben Carlo Benante                         *
+ *                                                                         *
+ * 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/.    *
+ *                                                                         *
+ * Contact author at:                                                      *
+ *  Ruben Carlo Benante                                                    *
+ *  rcb@beco.cc                                                            *
+ ***************************************************************************
+-->
+
 # Zettelclean
 
 Keep a Zettelkasten filename's slug in sync with the note's H1 heading.
@@ -77,4 +100,6 @@ wiring lives in `src/main.ts`.
 
 ## License
 
-0-BSD.
+GNU General Public License v3.0 or later (`GPL-3.0-or-later`).
+Copyright (C) 2026 Ruben Carlo Benante (Dr. Béco) <rcb@beco.cc>.
+See [LICENSE](LICENSE) for the full text.