1 files changed, 1 insertions, 0 deletions
diff --git a/README b/README
index 81948dc..aff068d 100644
--- a/README
+++ b/README
@@ -15,6 +15,7 @@ supports string literal (array of bytes)
 + ( a b -- c )
 < ( a b -- c )
 . ( a -- )
+neg ( a -- b )
 
 implementation of usually built-in features