README.md in fluent-plugin-flowcounter-simple-0.0.3 vs README.md in fluent-plugin-flowcounter-simple-0.0.4

@@ -1,16 +1,31 @@
 # fluent-plugin-flowcounter-simple [![Build Status](https://secure.travis-ci.org/sonots/fluent-plugin-flowcounter-simple.png?branch=master)](http://travis-ci.org/sonots/fluent-plugin-flowcounter-simple)
 
 Simple Fluentd Plugin to count number of messages and outputs to log
 
-## Configuration
+## Output Plugin Configuration
 
     <match foo.bar.**>
       type flowcounter_simple
       unit second
-    </source>
+    </match>
 
-This plugin does not emit, just writes into the log file as
+This plugin does not emit, just writes counts into the log file as
+
+    plugin:out_flowcounter_simple  count:30  indicator:num  unit:second
+
+## Filter Plugin Configuration
+
+Fluentd >= v0.12
+
+```apache
+<filter foo.bar.**>
+  type flowcounter_simple
+  unit second
+</filter>
+```
+
+This filter plugin pass through records, and writes counts into the log file as
 
     plugin:out_flowcounter_simple  count:30  indicator:num  unit:second
 
 ## Parameters