anchor.diff: -<!-- show one question by id
  --show comments with that question id
  -  -comments new form
   
  -show answers
  -  -show comments with that answer id
  -  -comments new form
  -
  -form for providing new answer -->
   
   <h1>Question: <%=@question.title%></h1>
   <p>
  
positive.code:         <!--should this go in controller or model?-->
          - <%=User.find(comment.user_id).username%>
        <%end%>
      <%end%>
      </ul>
    </h6>
  </p>
  
negative.code:     <%end%>
    </ul>
  </h6>
  Add a comment:
  <form method='POST' action='/comments'>
    <input type='text' name='username' placeholder='username'>
    <input type='text' name='body' placeholder='comment'>
  </form>
  </p>
  
  <p>
  