bootstrap data-toggle="toggle" doesn't work

i want to use bootstrap data-toggle="toggle" style. I have include

<link href="http://ift.tt/2aDsFEU" rel="stylesheet">

and

<script src="http://ift.tt/2aDrLs2"></script>

is use bootstrap v3.3.6 and jQuery v2.1.1.

Also i added bootstrap-toggle.min.css last in my index.html, to be sure that style has not changes.

In my html page i added <input type="checkbox" checked data-toggle="toggle">.

But this doesn't work, checkbox style is same, a small box with tick inside.

Can anyone tell what i do wrong?