Document format_translated modifier

Added in statamic/cms#4272.

Author: duncanmcclean

content/collections/modifiers/format_translated.md

@@ -0,0 +1,33 @@
+---
+id: 8cbea367-799f-4fb6-866e-519d571f7b3e
+blueprint: modifiers
+modifier_types:
+  - date
+  - string
+title: 'Format Translated'
+---
+Given a date string, or anything that sort of looks like a date string, `format_translated` will convert it to a [Carbon][carbon] instance and allow you to format it using your site's configured locale.
+
+```yaml
+event_date: 2024-02-28
+```
+
+::tabs
+
+::tab antlers
+```antlers
+{{ event_date | format_translated('l j F Y') }}
+```
+::tab blade
+```blade
+{{ Statamic::modify($event_date)->format_translated('l j F Y') }}
+```
+::
+
+Assuming your site's locale is `fr_FR`:
+
+```html
+mercredi 28 février 2024
+```
+
+[carbon]: http://carbon.nesbot.com