Add missing EIC volunteering link

submissions/templates/submissions/_submission_card_fellow_content.html

@@ -32,7 +32,7 @@
                 {% elif perms.scipost.can_assign_submissions %}
                     <a href="{% url 'submissions:assign_submission' submission.arxiv_identifier_w_vn_nr %}">Send a new assignment request</a>
                 {% else %}
-                    -
+                    <strong class="text-danger">You can volunteer to become Editor-in-charge by <a href="{% url 'submissions:volunteer_as_EIC' submission.arxiv_identifier_w_vn_nr %}">clicking here</a>.</strong>
                 {% endif %}
             </td>
         </tr>