Theme Link to external site

Hi I am trying to change a link to a external site.

The code looks like:

<div id=”killerapp”>/the-killer-app”><img id=”killerAppCover” src=”<?=get_bloginfo(‘wpurl’);?>/wp-content/themes/larrydownes.com/images/killerApp_cover.gif” alt=”The Killer App” /></div>

I tried:

<div id=”tsm”>https://www.bigbangdisruption.com/”><img id=”tsmCover” src=”<?=get_bloginfo(‘wpurl’);?>wp-content/uploads/2013/12/BigBangCover160x242.jpg” alt=”The Big Bang Disruption” /></div>

it still calls up my domain, just with the other url after.

Can some one point me in the right way ? Thanks.