reference/functions: correct carg duration min max (#56)

* reference/functions: correct carg duration min max

Signed-off-by: SoggySaussages <[email protected]>

* reference/functions: remove nanosecond note

Signed-off-by: SoggySaussages <[email protected]>

* learn/beginner: correct carg duration validation

Signed-off-by: SoggySaussages <[email protected]>

---------

Signed-off-by: SoggySaussages <[email protected]>

Author: SoggySaussages

content/docs/reference/templates/functions.md

@@ -2291,7 +2291,7 @@ An argument's `"type"` must be one of the following:
   duration)
 
 Additionally, the `int`, `float`, and `duration` type support validation ranges in the interval `(min, max)`, where for
-`duration` it is in seconds.
+`duration` it is in [time.Duration format](/docs/reference/templates/syntax-and-data#time) values.
 
 ##### Example
 

content/learn/beginner/command-arguments.md

@@ -133,7 +133,7 @@ Following types support these validation ranges:
 
 - `int`
 - `float`
-- `duration` (in seconds)
+- `duration` (in [time.Duration format](/docs/reference/templates/syntax-and-data#time))
 
 Make sure to use these instead of manually verifying a valid range, if possible, as it makes your code cleaner and
 easier to read.