README.md in fluent-plugin-cloudwatch-1.2.5 vs README.md in fluent-plugin-cloudwatch-1.2.6

@@ -1,6 +1,6 @@
-# fluent-plugin-cloudwatch
+# fluent-plugin-cloudwatch [![Build Status](https://travis-ci.org/yunomu/fluent-plugin-cloudwatch.png)](https://travis-ci.org/yunomu/fluent-plugin-cloudwatch/)
 
 
 ## Overview
 ***AWS CloudWatch*** input plugin.  
 
@@ -185,9 +185,32 @@
 ```
 
 2013-06-10 02:03:00 +0900       cloudwatch      {"EstimatedCharges_in_USD":"543.175"}
 2013-06-10 04:03:00 +0900       cloudwatch      {"EstimatedCharges_in_USD":"550.39"}
 
+```
+
+### GET StorageGateway Metirc
+
+```config
+  type cloudwatch
+  tag  cloudwatch
+  aws_key_id  YOUR_AWS_KEY_ID
+  aws_sec_key YOUR_AWS_SECRET/KE
+  cw_endpoint monitoring.us-east-1.amazonaws.com
+
+  namespace AWS/StorageGateway
+  metric_name CacheHitPercent,CachePercentUsed
+  dimensions_name GatewayId,GatewayName
+  dimensions_value sgw-XXXXXXXX,mygateway
+  statistics Average
+```
+
+#### output data format
+
+```
[phone]:12:00 +0900 cloudwatch: {"CacheHitPercent":0.0}
[phone]:12:00 +0900 cloudwatch: {"CachePercentUsed":95.15519175634687}
 ```
 
 ## Contributing
 
 1. Fork it