Add an index for 3.22 api additions

diff --git a/docs/reference/gtk/gtk-docs.sgml b/docs/reference/gtk/gtk-docs.sgml
index f29097308f69a580995adb52a8171bd04bc77027..d091acfc448f777972b3ff6b1e117c7e6b3d058d 100644 (file)
--- a/docs/reference/gtk/gtk-docs.sgml
+++ b/docs/reference/gtk/gtk-docs.sgml
@@ -488,6 +488,10 @@
     <title>Index of new symbols in 3.20</title>
     <xi:include href="xml/api-index-3.20.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>