Formatting of string value

Author: ralfhandl

versions/3.0.4.md

@@ -2486,7 +2486,7 @@ The `example` and `examples` fields are mutually exclusive, and if either is pre
 
 | Field Name                            |                                           Type                                           | Description                                                                                                                                                                                                                                                                                          |
 | ------------------------------------- | :--------------------------------------------------------------------------------------: | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| <a name="header-style"></a>style       |                                         `string`                                         | Describes how the header value will be serialized. The default (and only legal value for headers) is `simple`.                                                                                                                                                                                       |
+| <a name="header-style"></a>style       |                                         `string`                                         | Describes how the header value will be serialized. The default (and only legal value for headers) is `"simple"`.                                                                                                                                                                                       |
 | <a name="header-explode"></a>explode   |                                        `boolean`                                         | When this is true, header values of type `array` or `object` generate a single header whose value is a comma-separated list of the array items or key-value pairs of the map, see [Style Examples](#style-examples). For other data types this property has no effect. The default value is `false`. |
 | <a name="header-schema"></a>schema     |          [Schema Object](#schema-object) \| [Reference Object](#reference-object)          | The schema defining the type used for the header.                                                                                                                                                                                                                                                    |
 | <a name="header-example"></a>example   |                                           Any                                            | Example of the header's potential value; see [Working With Examples](#working-with-examples).                                                                                                                                                                                                        |