show an example of the deprecated method

Author: tbrowder

doc/Language/tables.pod6

@@ -123,9 +123,20 @@ take out trash
 =end table
 =end code
 
-Note that the current practice of putting the caption in the C<config> hash
-is deprecated. The practice will generate a warning in the upcoming version
-C<6.d>, and it will raise an exception in version C<6.e>.
+Although not a good practice, currently there is in use an alternate
+method of defining a caption as shown in this example:
+
+=begin code :skip-test
+=begin table :config{caption => "My Tasks"}
+mow lawn
+take out trash
+=end table
+
+Note the alternative method of putting the caption in the C<config> hash
+was necessary before the C<:caption> method was implemented, but that
+method is now considered to be deprecated. The practice will generate a
+warning in the upcoming version C<6.d>, and it will raise an exception in
+version C<6.e>.
 
 =head1 Good Tables