How do you add a click event handler for a ClassifiedTextRun in QuickInfo tip in a Visual Studio extension?

I am working through the VSSDK-Extensibility-Samples project on Github. The quick info project is working fine.

I just want to know how to make a ClassifiedTextRun ( word in the tip ) clickable and perform some action when the word is clicked.

I discovered that the Visual Studio SDK needed to be updated to the latest stable version to see the overload that takes a navigation action.