fix: Update NomCom references (ietf-tools#6583)

Add nomcom eligibility RFC to the references section

Fixes: ietf-tools#6581

Co-authored-by: Robert Sparks <rjsparks@nostrum.com>

Author: richsalz

ietf/templates/nomcom/announcements.html

@@ -56,9 +56,14 @@ <h2 class="mt-5" id="references">References</h2>
         </li>
         <li>
             <a href="{% url 'ietf.doc.views_doc.document_main' name='rfc8713' %}">
-                IAB, IESG, IETF Trust, and IETF LLC Selection, Confirmation, and Recall Process: Operation of the IETF Nominating and Recall Committees (RFC 8713) (Also BCP10)
+                IAB, IESG, IETF Trust, and IETF LLC Selection, Confirmation, and Recall Process: Operation of the IETF Nominating and Recall Committees (RFC 8713)
             </a>
         </li>
+	<li>
+            <a href="{% url 'ietf.doc.views_doc.document_main' name='rfc9389' %}">
+		Nominating Committee Eligibility (RFC 9389)
+	    </a>
+	</li>
         <li>
             <a href="{% url 'ietf.doc.views_doc.document_main' name='rfc3797' %}">
                 Publicly Verifiable Nominations Committee (NomCom) Random Selection (RFC 3797)