Log Message:-----------Provide a link to the UPDATE reference page in the 'Updating Data'section of the docs. Per suggestion from Brad Bowman.
Modified Files:-------------- pgsql/doc/src/sgml: dml.sgml (r1.19 -> r1.20) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/dml.sgml?r1=1.19&r2=1.20)
