[gnome-panel] docs: add GpImageMenuItem to API Reference

[Alberts Muktupāvels <muktupavels src gnome org>]

commit baefd40d35fce56b93a1dc42d7e93a198ea6859e
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Apr 3 04:29:14 2020 +0300

    docs: add GpImageMenuItem to API Reference

 docs/reference/libgnome-panel/libgnome-panel-docs.xml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/libgnome-panel/libgnome-panel-docs.xml 
b/docs/reference/libgnome-panel/libgnome-panel-docs.xml
index 59b91435e..59b196779 100644
--- a/docs/reference/libgnome-panel/libgnome-panel-docs.xml
+++ b/docs/reference/libgnome-panel/libgnome-panel-docs.xml
@@ -20,6 +20,7 @@
     <title>API Reference</title>
     <xi:include href="xml/gp-applet.xml"/>
     <xi:include href="xml/gp-applet-info.xml"/>
+    <xi:include href="xml/gp-image-menu-item.xml"/>
     <xi:include href="xml/gp-module.xml"/>
   </chapter>