In order to add an URL click ability or anchor tag to the chart title, there are two attributes you must insert into the title object.
1. flat: false
(Flat false overlaps the click event listener for the below label)
2. url:'www.google.com'
The resulting title object would look something like this:
title: {
text:'Title Click Test',
flat:false,
url: 'www.google.com',
target: '_blank'
}