README.md in rbatch-2.3.0 vs README.md in rbatch-2.3.1

- old
+ new

@@ -420,11 +420,11 @@
 #log_mail_to   : "xxx@sample.com"
 #log_mail_from : "xxx@sample.com"
 #log_mail_server_host : "localhost"
 #log_mail_server_port : 25
 #
-# if you want to send multiple recipients...
+# if you want to send multiple recipients, use array.
 #
 #log_mail_to :
 #  - "AAA@sample.com"
 #  - "BBB@sample.com"
 
@@ -464,9 +464,10 @@
       :append    => true,
       :level     => "info",
       :stdout    => false,
       :delete_old_log => false,
       :delete_old_log_date => 7,
+      :bufferd => false,
       :send_mail => false,
       :mail_to   => nil,
       :mail_from => "rbatch.localhost",
       :mail_server_host => "localhost",
       :mail_server_port => 25