DEV: adds documentation about caret option of widget dropdown (#9596)

DEV: adds documentation about caret option of widget dropdown (#9596)

diff --git a/app/assets/javascripts/discourse/app/widgets/widget-dropdown.js b/app/assets/javascripts/discourse/app/widgets/widget-dropdown.js
index 8fe72d3..0b26f8d 100644
--- a/app/assets/javascripts/discourse/app/widgets/widget-dropdown.js
+++ b/app/assets/javascripts/discourse/app/widgets/widget-dropdown.js
@@ -49,6 +49,7 @@ import hbs from "discourse/widgets/hbs-compiler";
     - options: accepts a hash of optional attributes
       - headerClass: adds css class to the dropdown header
       - bodyClass: adds css class to the dropdown header
+      - caret: adds a caret to visually enforce this is a dropdown
 */
 
 export const WidgetDropdownHeaderClass = {

GitHub sha: 7ef8f7bb

This commit appears in #9596 which was merged by jjaffeux.