Fix dataTypeFormatlink link. (#614)

* fix datatype link

README.md

@@ -453,7 +453,7 @@ Field Name | Type | Description
 <a name="parameterMaxLength"></a>maxLength | `integer` | See https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.2.1.
 <a name="parameterMinLength"></a>minLength | `integer` | See https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.2.2.
 <a name="parameterEnums"></a>enums | [\*] | See https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.5.1.
-<a name="parameterFormat"></a>format | `string` | The extending format for the previously mentioned [`type`](#parameterType). See [Data Type Formats](#dataTypeFormat) for further details.
+<a name="parameterFormat"></a>format | `string` | The extending format for the previously mentioned [`type`](#parameterType). See [Data Type Formats](https://swagger.io/specification/v2/#dataTypeFormat) for further details.
 
 ### Future