README.md in embulk-output-multi-0.2.0 vs README.md in embulk-output-multi-0.2.1

- old
+ new

@@ -16,10 +16,9 @@
 * **Cleanup supported**: yes
 
 ## Configuration
 
 - **outputs**: Configuration of output plugins (array, required)
-- **stop_on_failed_output**: Set true if you want to immediately stop outputting of all plugins with a plugin's error (boolean, default "false")
 
 ## Example
 
 ```yaml
 out: