Update README.md

Publish the configuration so that its not overwritten during a composer update.

README.md

@@ -34,6 +34,10 @@ Furthermore, add the following the the `aliases` array:
 		'Mailchimp'       => 'Hugofirth\Mailchimp\Facades\Mailchimp',
 		…
 	),
+
+Publish the configuration
+
+	$ php artisan config:publish hugofirth/mailchimp
 
 Lastly, run the command `composer update`.
 
@@ -43,7 +47,7 @@ _\* The subsequent steps should be repeated for any file `app.php` created for a
 
 ###Usage:
 
-Your unique MailChimp API key should be set in the package's config found in `..vendor/hugofirth/mailchimp/src/config/config.php`
+Your unique MailChimp API key should be set in the package's config found in `app/config/packages/hugofirth/mailchimp/config.php`
 
 Methods of the MailChimp api class work as described by the MailChimp API docs found [Here][3]. Thanks to Laravel's use of the "Facade" design pattern, all methods may be called in the following manner:
 
@@ -58,4 +62,4 @@ Enjoy!
 
 [1]: http://apidocs.mailchimp.com/api/downloads/#php
 [2]: http://laravel.com/
-[3]: http://apidocs.mailchimp.com/api/1.3/
+[3]: http://apidocs.mailchimp.com/api/1.3/