[docs] Fix missing comma in gtkrc docs

Reported by Alexander Saprykin in bug
https://bugzilla.gnome.org/show_bug.cgi?id=621775

diff --git a/docs/reference/gtk/tmpl/gtkrc.sgml b/docs/reference/gtk/tmpl/gtkrc.sgml
index 0dce9d20a5f94a966e28be89393be1f7f53d9d4f..e146d3157f91c73a1404f761bda880d3fd13d4cd 100644 (file)
--- a/docs/reference/gtk/tmpl/gtkrc.sgml
+++ b/docs/reference/gtk/tmpl/gtkrc.sgml
@@ -77,7 +77,7 @@ the class name of the widget, while for the class path, the class name is
 always used.
 </para>
 <para>
-Since GTK+ 2.10,<literal>widget_class</literal> paths can also contain
+Since GTK+ 2.10, <literal>widget_class</literal> paths can also contain
 <literal>&lt;classname&gt;</literal> substrings, which are matching
 the class with the given name and any derived classes. For instance,
 <informalexample><programlisting>