[libadwaita/wip/exalm/a11y-fixes: 10/14] split-button: Fix the a11y role in docs

[Christopher Davis <christopherdavis src gnome org>]

commit c1e8d31ec8ed636209e0753c8380d1d7beeac254
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Mon Dec 27 17:58:18 2021 +0500

    split-button: Fix the a11y role in docs
    
    It's GROUP, not BUTTON.

 src/adw-split-button.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/adw-split-button.c b/src/adw-split-button.c
index 2df5ada7..7a06623f 100644
--- a/src/adw-split-button.c
+++ b/src/adw-split-button.c
@@ -49,7 +49,7 @@
  *
  * ## Accessibility
  *
- * `AdwSplitButton` uses the `GTK_ACCESSIBLE_ROLE_BUTTON` role.
+ * `AdwSplitButton` uses the `GTK_ACCESSIBLE_ROLE_GROUP` role.
  *
  * Since: 1.0
  */