[gtk+] docs: add docs for GtkPageRange

[William Jon McCann <mccann src gnome org>]

commit 059f6d8a1f79af0404543d3346289ee05bc8550a
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 12:38:49 2014 -0500

    docs: add docs for GtkPageRange

 gtk/gtkprintsettings.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkprintsettings.h b/gtk/gtkprintsettings.h
index 2760e98..c6ff171 100644
--- a/gtk/gtkprintsettings.h
+++ b/gtk/gtkprintsettings.h
@@ -38,6 +38,13 @@ typedef void  (*GtkPrintSettingsFunc)  (const gchar *key,
                                        gpointer     user_data);
 
 typedef struct _GtkPageRange GtkPageRange;
+/**
+ * GtkPageRange:
+ * @start: start of page range.
+ * @end: end of page range.
+ *
+ * See also gtk_print_settings_set_page_ranges().
+ */
 struct _GtkPageRange
 {
   gint start;