[gtksourceview] docs: add index of new symbols in 4.0

[Sébastien Wilmet <swilmet src gnome org>]

commit 2331d77406c660fd53f496afbade69d20b65db38
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Nov 16 15:24:33 2016 +0100

    docs: add index of new symbols in 4.0

 docs/reference/gtksourceview-docs.xml.in |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtksourceview-docs.xml.in b/docs/reference/gtksourceview-docs.xml.in
index e99fc0c..5cc9ce9 100644
--- a/docs/reference/gtksourceview-docs.xml.in
+++ b/docs/reference/gtksourceview-docs.xml.in
@@ -182,5 +182,9 @@
       <title>Index of new symbols in 3.24</title>
       <xi:include href="xml/api-index-3.24.xml"><xi:fallback /></xi:include>
     </index>
+    <index id="api-index-4-0" role="4.0">
+      <title>Index of new symbols in 4.0</title>
+      <xi:include href="xml/api-index-4.0.xml"><xi:fallback /></xi:include>
+    </index>
   </part>
 </book>