Log Message:-----------Add a couple of cross-references to the docs about enum types, per a recent gripe that the info is hard to find.
Modified Files:-------------- pgsql/doc/src/sgml: datatype.sgml (r1.234 -> r1.235) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/datatype.sgml?r1=1.234&r2=1.235)
