pgsql-server/src/backend/storage/buffer README

CVSROOT:	/cvsroot
Module name:	pgsql-server
Changes by:	wieck@svr1.postgresql.org	03/11/14 00:32:11

Modified files:
	src/backend/storage/buffer: README 

Log message:
	Added documentation for the new interface between the buffer manager
	and the cache replacement strategy as well as a description of the
	ARC algorithm and the special tailoring of that done for PostgreSQL.
	
	Jan