[gtk+] docs: add docs for GtkRcProperty

[William Jon McCann <mccann src gnome org>]

commit b447ca7884d475648a98f29e8df842c4f43b7760
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 11:14:50 2014 -0500

    docs: add docs for GtkRcProperty

 gtk/deprecated/gtkrc.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gtk/deprecated/gtkrc.h b/gtk/deprecated/gtkrc.h
index 7e2f71f..ef1e27a 100644
--- a/gtk/deprecated/gtkrc.h
+++ b/gtk/deprecated/gtkrc.h
@@ -320,6 +320,16 @@ guint     gtk_rc_parse_priority (GScanner            *scanner,
 /* rc properties
  * (structure forward declared in gtkstyle.h)
  */
+/**
+ * GtkRcProperty:
+ * @type_name: quark-ified type identifier
+ * @property_name: quark-ified property identifier like
+ *   "GtkScrollbar::spacing"
+ * @origin: field similar to one found in #GtkSettingsValue
+ * @value:field similar to one found in #GtkSettingsValue
+ *
+ * Deprecated
+ */
 struct _GtkRcProperty
 {
   /* quark-ified property identifier like "GtkScrollbar::spacing" */