[gtk/wip/smcv/aboutdialog-licenses: 2/2] aboutdialog: Document the new licenses added in 3.24.20

[Simon McVittie <smcv src gnome org>]

commit 4db3f142d7d8b744006ef1480d08acf6cbf0a8fd
Author: Simon McVittie <smcv debian org>
Date:   Mon May 11 18:29:13 2020 +0100

    aboutdialog: Document the new licenses added in 3.24.20
    
    Originally part of b4c79bad "Assorted documentation fixes" by
    Matthias Clasen.
    
    Signed-off-by: Simon McVittie <smcv debian org>

 gtk/gtkaboutdialog.h | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gtk/gtkaboutdialog.h b/gtk/gtkaboutdialog.h
index aaa0155211..fdf50636f1 100644
--- a/gtk/gtkaboutdialog.h
+++ b/gtk/gtkaboutdialog.h
@@ -60,6 +60,9 @@ typedef struct _GtkAboutDialogPrivate GtkAboutDialogPrivate;
  * @GTK_LICENSE_LGPL_3_0_ONLY: The GNU Lesser General Public License, version 3.0 only. Since 3.12.
  * @GTK_LICENSE_AGPL_3_0: The GNU Affero General Public License, version 3.0 or later. Since: 3.22.
  * @GTK_LICENSE_AGPL_3_0_ONLY: The GNU Affero General Public License, version 3.0 only. Since: 3.22.27.
+ * @GTK_LICENSE_BSD_3: The 3-clause BSD licence. Since: 3.24.20.
+ * @GTK_LICENSE_APACHE_2_0: The Apache License, version 2.0. Since: 3.24.20.
+ * @GTK_LICENSE_MPL_2_0: The Mozilla Public License, version 2.0. Since: 3.24.20.
  *
  * The type of license for an application.
  *