Update help file to describe new feature.

Author: almsanac

help.html

@@ -22,17 +22,22 @@ <h2>
 Slideshow windows stay on top by default. Use the View menu or Preferences to change that.
 </p>
 <p>
-Preferences affect what happens to new windows. To change a window that already exists use the View menu.
+Preferences affect the behavior of new windows. To change a window that already exists use the View menu.
 </p>
 <p>
 Use the arrow keys to move to the next or previous picture. Use the space bar to pause and unpause a slideshow.
 </p>
 <p>
+Control-click on a picture to view it in the Finder.
+</p>
+<p>
 Double-click on a window to minimize it.
 </p>
 <p>
 When you're in another app you can make an always-on-top slideshow window transparent by moving the mouse over it.
 </p> 
+
+
 <p>
 Picture Window will remember the slideshows you have open and restore them when you quit and restart the app.
 </p>