title: Knockout data-binding nested html elements
body: <p>I have h2 tag with data-bind text property to a model value and inside i have a span tag which is also a data-bind text property to a model value. </p>
  
  <p>But span is getting replace when the model is binded, is there any way to append the html.</p>
  
  <p><a href="http://jsfiddle.net/WKnWr/1/" rel="noreferrer">http://jsfiddle.net/WKnWr/1/</a></p>