[gtk/ebassi/gidocgen: 451/478] treednd: Add summaries

[Emmanuele Bassi <ebassi src gnome org>]

commit 97210683e145acb57f4278a496d07a0798447068
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Mar 1 22:49:59 2021 -0500

    treednd: Add summaries

 gtk/gtktreednd.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/gtk/gtktreednd.c b/gtk/gtktreednd.c
index 84dee305fd..d42ae10f36 100644
--- a/gtk/gtktreednd.c
+++ b/gtk/gtktreednd.c
@@ -44,6 +44,18 @@
  * #GtkTreeDragSource and #GtkTreeDragDest interfaces.
  */
 
+/**
+ * GtkTreeDragDest:
+ *
+ * Interface for Drag-and-Drop destinations in `GtkTreeView`.
+ */
+
+/**
+ * GtkTreeDragSource:
+ *
+ * Interface for Drag-and-Drop destinations in `GtkTreeView`.
+ */
+
 GType
 gtk_tree_drag_source_get_type (void)
 {