* Add a Direct Download link on the page for the specified file
*
* @param pageURL: the URL of the page we are modifying
- * @param fileElem: the emelemt containig the file URL
+ * @param fileElem: the element containing the file URL
* @param fileRegexp: the regular expression for finding the file, the first
- * subpattern is taken as the file URL
- * @param linkDest: the element where to place the DIrect Download link
+ * sub-pattern is taken as the file URL
+ * @param linkDest: the element where to place the Direct Download link
*
* @return: null on error, true on success
*/