Typo

Author: anantn

index.html

@@ -282,7 +282,7 @@ <h2>Application Registry</h2>
 
         <dd>This value may be set to a function that will be invoked when an
         application is installed. The only argument to this function will be
-        the <code>AppObject</code> of the applicatio that was installed.
+        the <code>AppObject</code> of the application that was installed.
         <em>This attribute can be set by priveleged callers only.</em></dd>
 
         <dt>attribute EventListener onuninstall</dt>