Update docs/src/content/docs/learn/badges.mdx

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: popaprozac

docs/src/content/docs/learn/badges.mdx

@@ -179,8 +179,8 @@ badgeService.RemoveBadge()
 | Method                                       | Description                                                |
 |----------------------------------------------|------------------------------------------------------------|
 | `SetBadge(label string) error`               | Sets a badge with the specified label                      |
+| `SetCustomBadge(label string, options Options) error` | Sets a badge with the specified label and custom styling options (Windows only) |
 | `RemoveBadge() error`                        | Removes the badge from the application icon                |
-
 ### Structs and Types
 
 ```go