Fixes example script

Author: micheal-swiggs

README.md

@@ -6,6 +6,8 @@ This is a Java wrapper around the MailChimp API. Checkout `Example.groovy` for a
 
     ./gradlew -b dev.gradle run
 
+In `Example.groovy` you need to set your credentials and a mailchimp list id.
+
 ## Maven / Gradle
 
 This library can be included from Maven, e.g using gradle:

dev.gradle

@@ -5,7 +5,7 @@ apply plugin: 'application'
 
 sourceSets.main.java.srcDirs = []
 sourceSets.main.groovy.srcDirs += ["src/main/java"]
-sourceSets.main.groovy.srcDirs += ["."]
+sourceSets.main.groovy.srcDirs += ["example"]
 
 mainClassName = "com.mailchimp.Example"