1 files changed, 13 insertions, 0 deletions
diff --git a/README.md b/README.md
index cbe28f9..26bdff6 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,19 @@ with option `-n`:
     $ echo -n test | nthash
     0cb6948805f797bf2a82807973b89537
 
+License and warranty
+--------------------
+
+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](COPYING.md) for more details.
+
 ### Upstream
 
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