Add caption style

Author: Will Bamberg

editable-samples/pages/font/js/font.js

@@ -5,5 +5,6 @@ var cmMatchToShowCompletions = "font: ";
 var cmCompletionChoices = [
   '1.5em/1.2 courier',
   'italic 2em cursive',
-  'italic small-caps bolder condensed 24px/2 cursive'
+  'italic small-caps bolder condensed 24px/2 cursive',
+  'caption'
 ];