Update some examples and docs (#4682)

* Update some examples and docs

* Update now.rs

* Update date_now.md

Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>

docs/commands/par-each.md

@@ -21,3 +21,8 @@ Multiplies elements in list
 ```shell
 > [1 2 3] | par-each { |it| 2 * $it }
 ```
+
+Iterate over each element, print the matching value and it's index
+```shell
+> [1 2 3] | par-each -n { |it| if $it.item == 2 { echo $"found 2 at ($it.index)!"} }
+```