[gtk-doc] mkhtml2: ad chunk_params for 'reference'

[Stefan Sauer <stefkost src gnome org>]

commit ef0b42f843798b7a2ad8c1a2e7ff528e2c9d505c
Author: Stefan Sauer <ensonic users sf net>
Date:   Fri Mar 30 23:26:29 2018 +0200

    mkhtml2: ad chunk_params for 'reference'

 gtkdoc/mkhtml2.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtkdoc/mkhtml2.py b/gtkdoc/mkhtml2.py
index f49b1fa..19ef8b0 100644
--- a/gtkdoc/mkhtml2.py
+++ b/gtkdoc/mkhtml2.py
@@ -127,6 +127,7 @@ CHUNK_PARAMS = {
     'index': ChunkParams('ix', 'book'),
     'part': ChunkParams('pt', 'book'),
     'preface': ChunkParams('pr', 'book'),
+    'reference': ChunkParams('rn', 'book'),
     'sect1': ChunkParams('s', 'chapter'),
     'section': ChunkParams('s', 'chapter'),
 }