Widget heading link?

I am using this plugin for some pull quotes from longer testimonials that appear on a site I’m developing. What I would like to do is to call the widget heading “Client Testimonials” and for that heading to then link to the actual page on the site. If I add the following code to the heading field:

<a href="www.test.com">Heading</a>

and click save it then makes it appear like this:

<a href=\"www.test.com\">Heading</a>

And therefore a broken link.

Is there any way of doing this?