my HTML code :
<body>Firebrand will tend to burn any bricks out there. so the best idea is to ignore any active firebrand if you are a bricks. Otherwise, you can challenge a firebrand if you have the proper quality to keep up with their latest technology. And don't mess up with firebrand if you are a robber.</body>
I want to find any "firebrand" inside the body and replace it with <span class="firebrand">firebrand</span> with jQuery