Update 576-date-datefmt.markdown

Author: Joe7M

_build/reference/576-date-datefmt.markdown

@@ -1,8 +1,8 @@
 # DATEFMT
 
-> DATEFMT (format, dmy| (d,m,y)| julian_date)
+> s = DATEFMT (format, dmy| (d,m,y)| julian_date)
 
-Returns formatted date string.
+Returns a formatted date string. The input date can be given as a date-string returned by DATE, as the integers `d` for day, `m` for month and `y` for year, or as a julian date. `format` is a string specifying the format of the date: 
 
 | Format | Desription               |
 |--------| -------------------------|
@@ -19,8 +19,12 @@ Returns formatted date string.
 
 See also DATE and DATEDMY.
 
+### Example
+
 ```
-PRINT DATEFMT("ddd dd, mm/yy", "23/11/2001")
-REM prints "Fri 23, 11/01"
+PRINT DATEFMT("ddd dd, mm/yy", 23, 11, 2001)            ' Output: Fri 23, 11/01
+PRINT DATEFMT("mm.dd.yy"     , "23/11/2001")            ' Output: 11.23.01
+PRINT DATEFMT("dd.mm.yyyy"   , DATE)                    ' Output: 19.10.2023
+PRINT DATEFMT("dddd"         , JULIAN("23/11/2001"))    ' Output: Friday
 ```