If it suits your design, you could make use of the Mobile site title already built in and place an image. Then with CSS you would only need to push it to the right a bit:
If interesting in further custom coding then you can add the image into your website via HTML and then position it correctly.
You can get the
src of your image/svg from the media library where you have uploaded your image/svg. When viewing an image in more detail you can copy the URL file path in the bottom right corner:
Hope this helps you in the right direction & best wishes ✨