[gtksourceview] docs: add index of new symbols in 3.22

[Sébastien Wilmet <swilmet src gnome org>]

commit f39f74c61041536057ab84f70381c0f2b038aa0e
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Apr 3 16:29:37 2016 +0200

    docs: add index of new symbols in 3.22

 docs/reference/gtksourceview-docs.xml |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtksourceview-docs.xml b/docs/reference/gtksourceview-docs.xml
index 96071d6..7c7a992 100644
--- a/docs/reference/gtksourceview-docs.xml
+++ b/docs/reference/gtksourceview-docs.xml
@@ -159,6 +159,10 @@
     <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>