Update UI template to match setting name

resources/ui/templates/mission_start_EN.j2

@@ -13,7 +13,7 @@
 </p>
 
 <p>
-  To avoid delays entirely, use the "Never delay player flights" option in the
+  To avoid delays entirely, use the "Player flights ignore TOT and spawn immediately" option in the
   mission generation settings. Note that this will <strong>not</strong> adjust
   the timing of your mission; this option only allows you to wait in the
   cockpit.