doc(readme): usage examples

Author: Venelin Manchev

README.md

@@ -2,14 +2,19 @@
 
 Validate a VAT number against the official European Commission VIES VAT number validation SOAP service.
 
+## Prerequisites
+1. PHP version 7 and above.
+2. php7.x-soap extension
+
 ## How to install 
 
+<pre>
 composer require "toxicdigital/vat-validator"
+</pre>
 
 ## How to use
 
 <pre>
-<?php
 
 use Toxic\Validator\Vat as VatValidator;
 
@@ -21,4 +26,15 @@ $validator->isValid("XY123456789");
 //If VAT number is valid, company info is available
 $validator->getCompany();
 
+/*
+ * Toxic\Validator\Vat\Company Object
+ * (
+ *   [name] => John Doe
+ *   [address] => 123 Main St, Anytown, UK
+ *   [vatNumber] => 100
+ *   [countryCode] => GB
+ *   [valid] => true
+ * )
+ */
+
 </pre>