Include the JavaScript SDK on your page once, ideally right after the opening
<body>
tag.<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>
Place the code for your plugin wherever you want the plugin to appear on your page.
<div class="fb-like-box" data-href="https://www.facebook.com/pages/Book-Of-Programmer/536165506481676" data-colorscheme="light" data-show-faces="true" data-header="true" data-stream="true" data-show-border="true"></div>