Clarification in Step Entry, following a forum question, update to the screenshot

include/step-entry.html

@@ -9,11 +9,12 @@
   The step entry dialog is accessed via a <kbd class="mouse">right click</kbd>
   context menu on the <kbd>rec-enable</kbd> button, because step entry is related
   to <em>recording</em> MIDI data. Step editing and recording MIDI via the
-  track's MIDI port cannot happen simultaneously.
+  track's MIDI port cannot happen simultaneously, so the track should <em>not</em>
+  be rec-armed.
 </p>
 
 <figure>
-    <img src="/images/a3_step_entry.png" alt="Ardour's Step Entry dialog">
+    <img src="/images/step_entry.png" alt="Ardour's Step Entry dialog">
     <figcaption>
       Ardour's Step Entry dialog
     </figcaption>