add license

1 files changed, 17 insertions, 1 deletions

diff --git a/gramscii.c b/gramscii.c
index 2d8b593..8162835 100644
--- a/gramscii.c
+++ b/gramscii.c
@@ -1,6 +1,22 @@
 /*
 *
-* This is `gramscii`, a simple tool to create ascii box graphs
+* gramscii: a simple editor for ASCII box-and-arrow charts
+*
+* Copyright (c) 2019 Vincenzo "KatolaZ" Nicosia <katolaz@freaknet.org>
+*
+* 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. Please see the attached file COPYING. 
+* Otherwise, please visit <https://www.gnu.org/licenses/>.
 *
 */