To use the shortcodes for the Dijitul Testimonials use the following structure. 

[testimonial-group]

[testimonial author="Insert Author Name, Company etc here"]

Lorem ipsum dolor sit amet, consectetur adipisicing elit. Non, fugiat, deleniti, mollitia ipsam blanditiis commodi nihil tempora nulla quod rerum temporibus inventore molestias recusandae cum consequatur nobis sapiente tempore quia.

[/testimonial]

[testimonial-group]