Isolate the config directive that is absolutely necessary in README

Author: ento

README.md

@@ -19,13 +19,15 @@ This library is distributed as 'fluent-logger' python package. Please execute th
 
 ## Configuration
 
-Fluentd daemon must be lauched with the following configuration:
+Fluentd daemon must be launched with a tcp source configuration:
 
     <source>
       type forward
       port 24224
     </source>
 
+To quickly test your setup, add a matcher that logs to the stdout:
+
     <match app.**>
       type stdout
     </match>