Update README.md

Author: api-postcode

README.md

@@ -37,10 +37,10 @@ ApiPostcode\ApiPostcodeServiceProvider::class,
 Optional - Register the Facade in: **config/app.php**
 
 ``` php
-    'aliases' => [
-    	//...
-    	'Postcode' => ApiPostcode\Facade\Postcode::class,
-    ];
+'aliases' => [
+    //...
+    'Postcode' => ApiPostcode\Facade\Postcode::class,
+];
 ````
 
 ### Step 3: Configure Api Postcode credentials