Update US Street Address, new link

README.md

@@ -483,7 +483,7 @@ API | Description | Auth | HTTPS | CORS |
 | [PurgoMalum](http://www.purgomalum.com) | Content validator against profanity & obscenity | No | No | Unknown |
 | [US Autocomplete](https://www.smarty.com/docs/cloud/us-autocomplete-pro-api) | Enter address data quickly with real-time address suggestions | `apiKey` | Yes | Yes |
 | [US Extract](https://www.smarty.com/products/apis/us-extract-api) | Extract postal addresses from any text including emails | `apiKey` | Yes | Yes |
-| [US Street Address](https://smartystreets.com/docs/cloud/us-street-api) | Validate and append data for any US postal address | `apiKey` | Yes | Yes |
+| [US Street Address](https://www.smarty.com/docs/cloud/us-street-api) | Validate and append data for any US postal address | `apiKey` | Yes | Yes |
 | [vatlayer](https://vatlayer.com/documentation) | VAT number validation | `apiKey` | Yes | Unknown |
 
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