title: Spring-restdocs field description from annotations
body: <p>Is it possible to use annotations (at field-level) to provide description for fields?</p>
  
  <p>I know I can use <code>description</code> method for that</p>
  
  <pre><code>.andDo(document("index", responseFields( 
              fieldWithPath("contact").description("The user's contact details"), 
  </code></pre>
  
  <p>but I would prefer to put that description together with field definition, in my response object.</p>
  
  <pre><code>class IndexResponse {
   //The user's contact details
   String contract;
  }
  </code></pre>
  
  <p>I know that I could have generated constraint descriptions (<a href="http://docs.spring.io/spring-restdocs/docs/current/reference/html5/#_using_constraint_descriptions_in_generated_snippets" rel="nofollow noreferrer">http://docs.spring.io/spring-restdocs/docs/current/reference/html5/#_using_constraint_descriptions_in_generated_snippets</a>) but it generated description only for validation annotations.</p>
  
  <p>I am looking for something like <a href="https://github.com/swagger-api/swagger-core/wiki/Annotations#apimodelproperty" rel="nofollow noreferrer">https://github.com/swagger-api/swagger-core/wiki/Annotations#apimodelproperty</a> from Swagger.</p>