add example to docs, as people are seeming to have trouble with this

add example to docs, as people are seeming to have trouble with this

Fri Mar 15 12:51:42 2002  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreeviewcolumn.c
	(gtk_tree_view_column_new_with_attributes): add example to docs,
	as people are seeming to have trouble with this function.

Remake docs as well.