Document u key correctly.

1 files changed, 2 insertions, 3 deletions

diff --git a/hcalc.rst b/hcalc.rst
index 2f900b5..951d067 100644
--- a/hcalc.rst
+++ b/hcalc.rst
@@ -150,9 +150,8 @@ KEYBOARD
             *CLR* key: clears the number and any pending operation.
 
 **u**
-            Clears the number, same as backspacing over it, but does not
-            clear any pending operation. There is no button in the UI for
-            this, so it can't be done with the mouse.
+            *CE* (clear entry) key. Clears the number being entered, same as backspacing over it,
+            but does not clear any pending operation.
 
 **D** **H** **O** **B**
             *DEC* *HEX* *OCT* *BIN* keys.