GROUNDING: CNC and Kreg bench

Hello all! I see there are a few threads on grounding but mostly related to the spindle. I went with the popular metal Kreg workbench for my CNC and was hoping someone could supply description and images on how they grounded their machine to the bench? I see a lot of troublesome comments about static build up and want to do this right. Thank you in advance!

Here is how I grounded mine.