diff --git a/src/nibble_dice_tracker.gmo b/src/nibble_dice_tracker.gmo
index 6d1d900..58253fb 100644
--- a/src/nibble_dice_tracker.gmo
+++ b/src/nibble_dice_tracker.gmo
@@ -54,6 +54,7 @@ available samples:
 * Arrow key right, or 'l': move cursor to next nibble
 * 'Ctrl' or '+': increment nibble
 * 'Alt' or '-': decrement nibble
+* '0' to '9' and 'a' to 'f': assign hexadecimal value to nibble
 
 # the code
 
@@ -62,5 +63,4 @@ you can find the code in the {uxnería}
 
 # possible improvements
 
-* keys for setting the value of a nibble?
 * midi output?