Update warning disclosure with organizers' response (#6)

- Update warning disclosure with organizers' response (44d7507defd1aa2c2234f23d1a88c0d9ac9d1a44)
- Minor rephrase (6acd27d9555f7eadb7653b30842a5b6edcc9f0e0)

README.md

@@ -174,7 +174,8 @@ dataset_info:
     <li>Non-English files contain many English sentences.</li>
     <li>Their "parallel" sentences in English are not aligned: they are uncorrelated with their counterpart.</li>
   </ul>
-  <p>We have contacted the WMT organizers.</p>
+  <p>We have contacted the WMT organizers, and in response, they have indicated that they do not have plans to update the Common Crawl corpus data.</p>
+  <p>Their rationale pertains to the expectation that such data has been superseded, primarily by CCMatrix, and to some extent, by ParaCrawl datasets.</p>
 </div>
 
 Translation dataset based on the data from statmt.org.