fixes #19930: update split dropup variation to include modifier

diff --git a/docs/components/dropdowns.md b/docs/components/dropdowns.md
index 4511d6d323d0ede831600a70e0657561479bb658..d43f5e17d5325ae667c73b91c7353e3371970d41 100644 (file)
--- a/docs/components/dropdowns.md
+++ b/docs/components/dropdowns.md
@@ -361,7 +361,7 @@ Trigger dropdown menus above elements by adding `.dropup` to the parent element.
       <button type="button" class="btn btn-secondary">
         Split dropup
       </button>
-      <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+      <button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
         <span class="sr-only">Toggle Dropdown</span>
       </button>
       <div class="dropdown-menu">