README.md in embulk-output-td-0.5.0 vs README.md in embulk-output-td-0.5.1

@@ -21,10 +21,11 @@
 - **auto_create_table**: the flag for creating the database and/or the table if they don't exist (boolean, default=true)
 - **mode**: 'append', 'replace' and 'truncate' (string, default='append')
 - **database**: database name (string, required)
 - **table**: table name (string, required)
 - **session**: bulk_import session name (string, optional)
+- **pool_name**: bulk_import session pool name (string, optional)
 - **time_column**: user-defined time column (string, optional)
 - **unix_timestamp_unit**: if type of "time" or **time_column** is long, it's considered unix timestamp. This option specify its unit in sec, milli, micro or nano (enum, default: `sec`)
 - **tmpdir**: temporal directory (string, optional) if set to null, plugin will use directory that could get from System.property
 - **upload_concurrency**: upload concurrency (int, default=2). max concurrency is 8.
 - **file_split_size**: split size (long, default=16384 (16MB)).
@@ -60,10 +61,12 @@
   apikey: <your apikey>
   endpoint: api.treasuredata.com
   database: my_db
   table: my_table
   time_column: created_at
+  auto_create_table: true
+  mode: append
 ```
 
 ## Install
 
 ```
@@ -79,9 +82,11 @@
   endpoint: api.treasuredata.com
   http_proxy: {host: localhost, port: 8080, use_ssl: false, user: "proxyuser", password: "PASSWORD"}
   database: my_db
   table: my_table
   time_column: created_at
+  auto_create_table: true
+  mode: append
 ```
 
 
 
 ## Build