Use idnits on www.ietf.org

Fixes ticket ietf-tools#1200
Commit ready for merge
 - Legacy-Id: 7215

Author: rjsparks

ietf/templates/doc/document_draft.html

@@ -235,7 +235,7 @@
   | <a href="http://www.fenron.net/~fenner/ietf/deps/index.cgi?dep={{ name }}" rel="nofollow">Dependencies to this document</a>
   | <a href="{% url 'doc_references' doc.canonical_name %}" rel="nofollow">References</a>
   | <a href="{% url 'doc_referenced_by' doc.canonical_name %}" rel="nofollow">Referenced By</a>
-  | <a href="http://tools.ietf.org/idnits?url=http://tools.ietf.org/id/{{ doc.filename_with_rev }}" rel="nofollow" target="_blank">Check nits</a>
+  | <a href="http://www.ietf.org/tools/idnits?url=http://www.ietf.org/archive/id/{{ doc.filename_with_rev }}" rel="nofollow" target="_blank">Check nits</a>
   | <a href="/feed/document-changes/{{ name }}/">History feed</a>
   | <a href="http://www.google.com/search?as_q={{ doc.name }}&as_sitesearch={{ search_archive }}" rel="nofollow" target="_blank">Search Mailing Lists</a>
   {% if user|has_role:"Area Director" %}