Add mention in README of Oracle.

Author: bmomjian

contrib/README

@@ -97,6 +97,10 @@ oid2name -
 	maps numeric files to table names
 	by B Palmer <bpalmer@crimelabs.net>
 
+oracle -
+	converts Oracle database schema to PostgreSQL
+	by Gilles Darold <gilles@darold.net>
+
 pg_controldata -
 	Dump contents of pg_control (database master file)
 	by Oliver Elphick <olly@lfix.co.uk>