fix README

Author: tiagof

README.md

@@ -140,7 +140,16 @@ InvoiceXpress::items()->delete(1234);
 #### Invoice lifecycle:
 
 ```php
-use Squarebit\InvoiceXpress\API\Data\ClientData;use Squarebit\InvoiceXpress\API\Data\EmailClientData;use Squarebit\InvoiceXpress\API\Data\EmailData;use Squarebit\InvoiceXpress\API\Data\InvoiceData;use Squarebit\InvoiceXpress\API\Data\ItemData;use Squarebit\InvoiceXpress\API\Data\PartialPaymentData;use Squarebit\InvoiceXpress\API\Data\StateData;use Squarebit\InvoiceXpress\Enums\DocumentEventEnum;use Squarebit\InvoiceXpress\Enums\EntityTypeEnum;use Squarebit\InvoiceXpress\Facades\InvoiceXpress;
+use Squarebit\InvoiceXpress\API\Data\ClientData;
+use Squarebit\InvoiceXpress\API\Data\EmailClientData;
+use Squarebit\InvoiceXpress\API\Data\EmailData;
+use Squarebit\InvoiceXpress\API\Data\InvoiceData;
+use Squarebit\InvoiceXpress\API\Data\ItemData;
+use Squarebit\InvoiceXpress\API\Data\PartialPaymentData;
+use Squarebit\InvoiceXpress\API\Data\StateData;
+use Squarebit\InvoiceXpress\Enums\DocumentEventEnum;
+use Squarebit\InvoiceXpress\Enums\EntityTypeEnum;
+use Squarebit\InvoiceXpress\Facades\InvoiceXpress;
 
 $invoiceEndpoint = InvoiceXpress::invoices();