[gtk+] docs: Add an index for 3.8 api additions

[Matthias Clasen <matthiasc src gnome org>]

commit e9aeb2fbcaf5d3485ff73b321772437d0134042a
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 17 22:19:59 2012 -0500

    docs: Add an index for 3.8 api additions

 docs/reference/gtk/gtk-docs.sgml |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk-docs.sgml b/docs/reference/gtk/gtk-docs.sgml
index 1d33406..ab14ce0 100644
--- a/docs/reference/gtk/gtk-docs.sgml
+++ b/docs/reference/gtk/gtk-docs.sgml
@@ -406,6 +406,10 @@
     <title>Index of new symbols in 3.6</title>
     <xi:include href="xml/api-index-3.6.xml"><xi:fallback /></xi:include>
   </index>
+  <index id="api-index-3-8" role="3.8">
+    <title>Index of new symbols in 3.8</title>
+    <xi:include href="xml/api-index-3.8.xml"><xi:fallback /></xi:include>
+  </index>
 
   <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>