README.md in embulk-input-s3-0.1.0 vs README.md in embulk-input-s3-0.1.1

@@ -1,11 +1,10 @@
 # S3 file input plugin for Embulk
 
 ## Overview
 
 * Plugin type: **file input**
-* Rollback supported: **yes**
 * Resume supported: **yes**
 * Cleanup supported: **yes**
 
 ## Configuration
 
@@ -19,9 +18,10 @@
 
 ```yaml
 in:
   type: s3
   bucket: my-s3-bucket
+  path_prefix: logs/csv-
   endpoint: s3-us-west-1.amazonaws.com
   access_key_id: ABCXYZ123ABCXYZ123
   secret_access_key: AbCxYz123aBcXyZ123
 ```