[libdazzle] doc: add properties group to docs

[Christian Hergert <chergert src gnome org>]

commit c8a80fb2e20bbebbaef0c4feb83331f89b315659
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 7 18:01:00 2017 -0700

    doc: add properties group to docs

 doc/dazzle-docs.sgml |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/doc/dazzle-docs.sgml b/doc/dazzle-docs.sgml
index 98e3ecf..f12f835 100644
--- a/doc/dazzle-docs.sgml
+++ b/doc/dazzle-docs.sgml
@@ -290,6 +290,7 @@
   <part id="dazzle-actions">
     <title>Action Integration</title>
     <xi:include href="xml/dzl-child-property-action.xml"/>
+    <xi:include href="xml/dzl-properties-group.xml"/>
     <xi:include href="xml/dzl-widget-action-group.xml"/>
     <xi:include href="xml/dzl-settings-flag-action.xml"/>
   </part>