How do I replace theme logo with my own text?

I am new to wordpress and don’t know anything about html. I purchased a premium theme from elegant themes and want to change their theme “logo” and add my name in it’s place. I posted on their forum but still don’t understand what they mean. I’ve asked for further instruction but no response.

Here is my website: https://maureenvetoslater.com/

“Business Card” needs to be replaced with my name. I was told to go to, “find this code: <img src=”<?php bloginfo(‘stylesheet_directory’); ?>/images/logo.png” id=”logo” alt=”” />
and replace /images/logo.png with your image.”

Okay, but when I removed that section, I typed in my name and then nothing appeared. So what do I need to do since my name is not an image or logo.