ascii doc response-fields.adoc missing when using only ResourceDocumentation.resource

Hi,

Initially, I was using classes from spring-restdocs to document an api and the generated snippets used to include every type of asciidoc needed, including the files response-fields.adoc. Then, I switched to ResourceDocumentation to be able to specify the schema.
Here is an example :

```java

@Test
public void getDriver() throws Exception {
WebTestClient.BodySpec driverBodySpec = webClient.get().
uri("/drivers/{id}", 1).
accept(MediaType.APPLICATION_JSON).
header("HEADER", "value").
exchange().
expectStatus().isOk().
expectBody(Driver.class).
consumeWith(
WebTestClientRestDocumentationWrapper.document(DOCUMENT_IDENTIFIER, "get a driver by its id",
ResourceDocumentation.resource(
ResourceSnippetParameters.
builder().
requestHeaders(
HeaderDocumentation.
headerWithName("HEADER").
optional().
description("optional header when retrieving a driver")
).
pathParameters(
ResourceDocumentation.
parameterWithName("id").
description("the id of a driver").
type(SimpleType.INTEGER)
).
responseFields(this.driverFieldDescriptors).
responseSchema(Schema.schema("Driver")).
build()
)
// todo : find a way to avoid duplication : if not there, no response-fields.adoc generated
, PayloadDocumentation.responseFields(this.driverFieldDescriptors)
));
driverBodySpec.consumeWith(body -> Assertions.assertEquals(driverJohnDOE, body.getResponseBody()));
}
```

I realized that I have to duplicate the responseFields in order for the response-fields.adoc to be generated.

Is there another way to do the same without duplicating this part?