Log Message:-----------Remove claim that this chapter discusses rules and triggers.
per Bruno Guimarães Carneiro
Modified Files:-------------- pgsql/doc/src/sgml: dml.sgml (r1.20 -> r1.21) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/dml.sgml?r1=1.20&r2=1.21)
