The code you want to enter is this one:
<centre><div class="fb-like" data-href="https://www.facebook.com/paulomahonyspeaker" data-layout="standard" data-action="like" data-size="small" data-show-faces="true" data-share="true"></div></centre><centre></centre>
Remember to change the link, where it says 'paulomahonyspeaker' to your own Facebook page!