How can i link facebook to my blog at the url of rizzalhopper.blogspot.com?

[thunderingturkey614]

How can i link facebook to my blog at the url of rizzalhopper.blogspot.com? for example, i have this blog but i wanna add the 'like' button to my blog and i went to facebook developers and they said to paste some code to my page. but i dont know how to paste the codes...

this are the type of codes...

<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>