code: def handle_references(json_references):
          
          reference_list = []
          for reference_dict in json_references:
              reference_list.append(Reference(reference_dict['url'],
                                              reference_dict['title']))
  
          return reference_list
docs: Create a list of reference objects that represent this part of the JSON
          data:
  
            "references": [
                {"url": "http://foo.com/xss", "title": "First reference to ..."},
                {"url": "http://asp.net/xss", "title": "How to fix ..."},
                {"url": "http://owasp.org/xss", "title": "OWASP desc for XSS"}
              ]
  
          :return: A list with Reference objects