README.md in alephant-logger-3.0.2 vs README.md in alephant-logger-3.1.0

@@ -48,9 +48,12 @@
 logger = Alephant::Logger.setup([statsd_driver, cloudwatch_driver])
 logger.increment "foo.bar"
 logger.metric(:name => "FooBar", :unit => "Count", :value => 1)
 ```
 
+> Note: `Alephant::Logger.setup` is mandatory  
+> Arguments are optional though
+
 ## Contributing
 
 1. [Fork it!](http://github.com/BBC-News/alephant-logger/fork)
 2. Create your feature branch: `git checkout -b my-new-feature`
 3. Commit your changes: `git commit -am 'Add some feature'`