Merge pull request #148 from balthz/patch-1

Update FAQ to be compatible with version 3.0.1

docs/faq.md

@@ -50,7 +50,7 @@ This can be done by adding to the arguments for the already defined `npmSetup` t
 ```gradle
 tasks.npmSetup {
     doFirst {
-        args = args + ['--registry', 'http://myregistry.npm.com']
+        args.addAll(['--registry', 'http://myregistry.npm.com'])
     }
 }
 ```