README.md in fluent-plugin-flowcounter-simple-0.0.1 vs README.md in fluent-plugin-flowcounter-simple-0.0.2

@@ -21,9 +21,13 @@
 
 - indicator
 
     One of num/byte. Default: num
 
+- comment
+
+    Just a comment. You may use this to mark where you put flowcounter_simple.
+
 ## Relatives
 
 There is a [fluent-plugin-flowcounter](https://github.com/tagomoris/fluent-plugin-flowcounter), 
 but I needed a very very simple plugin to use for performance evaluation.