[gnome-panel] docs: fix distcheck

[Alberts Muktupāvels <muktupavels src gnome org>]

commit f5c4a5c133e4e8563548d59e6f4c9919490f9076
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Oct 8 15:57:58 2016 +0300

    docs: fix distcheck

 .../libpanel-applet/libpanel-applet-docs.xml       |    5 +++++
 .../libpanel-applet/libpanel-applet-sections.txt   |    3 +--
 2 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/doc/reference/libpanel-applet/libpanel-applet-docs.xml 
b/doc/reference/libpanel-applet/libpanel-applet-docs.xml
index 72d3333..9dea9d7 100644
--- a/doc/reference/libpanel-applet/libpanel-applet-docs.xml
+++ b/doc/reference/libpanel-applet/libpanel-applet-docs.xml
@@ -1398,6 +1398,11 @@ PanelApplet.Applet.factory_main("HelloWorldFactory",
     <xi:include href="xml/api-index-3.18.xml"><xi:fallback /></xi:include>
   </index>
 
+  <index id="api-index-3-22" role="3.22">
+    <title>Index of new symbols in 3.22</title>
+    <xi:include href="xml/api-index-3.22.xml"><xi:fallback /></xi:include>
+  </index>
+
   <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>
 
 </book>
diff --git a/doc/reference/libpanel-applet/libpanel-applet-sections.txt 
b/doc/reference/libpanel-applet/libpanel-applet-sections.txt
index fd3d810..f46760e 100644
--- a/doc/reference/libpanel-applet/libpanel-applet-sections.txt
+++ b/doc/reference/libpanel-applet/libpanel-applet-sections.txt
@@ -11,9 +11,8 @@ PanelAppletFlags
 PANEL_APPLET_FLAGS_ALL
 panel_applet_get_orient
 panel_applet_get_gtk_orientation
+panel_applet_add_text_class
 panel_applet_set_size_hints
-panel_applet_get_background
-panel_applet_set_background_widget
 panel_applet_get_flags
 panel_applet_set_flags
 panel_applet_get_locked_down