[Template: Freelancer] Adding a logo to the header

I’m trying to add a logo to the left hand side of the header title, but I can’t seem to make it work. I can’t find the text for the header, just a bar where I enter the title and site title and tagline within the “customize” tab. I’m not too proficient in any form of coding, but when I try to add my logo, it places it at the bottom of the text. Any help would be appreciated!