Log Message:
-----------
Provide better guidance for adjusting shared_buffers.
Modified Files:
--------------
pgsql/doc/src/sgml:
config.sgml (r1.266 -> r1.267)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml?r1=1.266&r2=1.267)