Minor documentation update.

Author: mountaineerbr

README.md

@@ -48,7 +48,7 @@ For direct execution without wrapping the `C-code date` programme, set `options
 
 Setting the last argument of the command line to exactly `y`, `mo`, `w`, `d`, `m`, or `s` will print only the specified timeframe result.
 
-Alternatively, set `options -vvvv` to filter the main output layout for specific fields.
+Alternatively, set `options -vvv` to filter the main output layout for specific fields.
 
 ```
 % datediff.sh -vvv tomorrow+8hours+12seconds

datediff.sh

@@ -62,7 +62,7 @@ DESCRIPTION
 	Option -u sets or prints dates in Coordinated Universal Time (UTC)
 	in the main function. This affects the \`C-code date' programme.
 
-	Options -vvvv filter the main output layout for specific timeframes.
+	Options -vvv filter the main output layout for specific timeframes.
 
 
 	Extra Functions

man/README.md

@@ -70,7 +70,7 @@ Output “DATES” section prints two dates in **ISO-8601 format** or, if
 in the main function. This affects how the `C-code date` programme
 process dates.
 
-Set **options -vvvv** to print different output layouts.
+Set **options -vvv** to print different output layouts.
 
 ### Extra Functions