title: Add html content with line break inside d3 circle
body: <p>Is it possible in d3 to Add html content instead of appending text.In the Following code, </p>
  
  <pre><code> circle.append("circle")
                                .attr("cx", 65)
                                .attr("cy", 65)
                                .attr("r", 65)
                                .attr('fill','none')
                                .attr('stroke','#008080')
                                .attr('class','ourmission')
      circle.append('text')
                                .attr('x', 65)
                                .attr('y',65)
                                .attr('dx',65)
                                .text(function(d){
                                return d.Some_Value+"&lt;br/&gt;"+d.Some_OtherValue
                                               })
  </code></pre>
  
  <p>I have appended text,since I need to add line break to my text dynamically based on some condition I need html content to be added instead of text.If am not wrong I think line break is not possible with appending text.</p>
  
  <p>I need to do some thing like this,</p>
  
  <pre><code>  .html(function(d){
        return d.Some_Value+"&lt;br/&gt;"+d.Some_OtherValue
                 })
  </code></pre>