Update README.md

Author: mylms

README.md

@@ -5,8 +5,8 @@ Simple Arduino Clock with LED matrix display 32 x 8 pix. In this sketch is LedCo
 In version 1.4 you can use clock verticaly and show some short messages (you can use two inputs). If you connect input 10 and/or 11 to GND you can show one of them. You can upgrade text of message only in code, see row around 410 (look for '//show some message or time'). More information in code.
 
 Menu:
-- H: Hours
-- M: Minutes
+- H: Hour
+- M: Minute
 
 - y: year
 - m: month