Add subhire link to new event page

RIGS/templates/event_form.html

@@ -106,6 +106,10 @@
                           title="Things that aren't service-based, like training, meetings and site visits.">
 			            <button type="button" class="btn btn-info w-25" data-is_rig="0">Non-Rig</button>
 		            </span>
+                    <span data-toggle="tooltip"
+                          title="Record equipment hired in from other companies">
+			            <a href="{% url 'subhire_create' %}" class="btn bg-warning w-25">Subhire</a>
+		            </span>
                 </div>
             </div>
         </div>