Code for Link in Logo

Hi!
I would like to have a sidebar containing a list of recommended suppliers. I’l like this list to be a column of each supplier’s logos with their links buried in the logo.
I’m supposing I’d use a plain text widget and embed code there. I’ve seen how you’ve done this using a button icon (and that works great), but how would I switch the button icon for a logo image?

I apologize for being a noob, but I’m hoping this is an easy one for you guys.

Thank you,
Scott