Minor clarification added re: configuration context

Author: jamsden

specs/ldm/link-discovery-management-spec.html

@@ -742,6 +742,7 @@ <h2>LDM POST Entity Response Body</h2>
           sourceConceptURL by the predicateURL
         </li>
       </ul>
+      <p>In all cases, the source and target concept URLs returned in the entity response body MUST be selected by the given Configuration-Context.</p>
     </section>
 
     <section id="conformance">