Styles fillId mistyped

Wooly65

I submitted issue #111 in DataTables/Buttons.

Lines 712-716 in buttons.html5.js incorrectly have fillId="4" when they should be fillId="3"., which will show the red background.

Also your documentation at https://datatables.net/reference/button/excelHtml5 has style #20 mislabeled as #10.

Wooly65

Thanks for the fix.

allan

Thanks for letting me know about the bug! This is the fix should anyone find this discussion.

Allan