autocomplete demo: corrected spelling of perl

Author: rdworth

demos/autocomplete/combobox.html

@@ -103,7 +103,7 @@
         <option value="h">haskell</option>
         <option value="j">java</option>
         <option value="js">javascript</option>
-        <option value="p1">pearl</option>
+        <option value="p1">perl</option>
         <option value="p2">php</option>
         <option value="p3">python</option>
         <option value="r">ruby</option>