Took 30 mins but I have figured out how to add/change images to the scrolling banner.

Heres the command:

<img src="image link here.jpg" height="50"/>

You take the image you want by googling and open it in a new tab. Copy the image address and put it in "image link here" making sure its between the " ". If you want to add more images, just copy pasta the entire line.

Example:

<img src="https://i.pinimg.com/originals/fe/16/10/fe1610dd68c373e484df700187ffef8c.jpg" height="50"/>

Might have to change the height (mine is 50) in order to see it.

Changing the banner animation duration will also change how fast it scrolls (mines at 8).

I put the banner animation delay at -100 but you might have to play around with it.

Here are some additional commands you can add:
https://www.w3schools.com/tags/tag_img.asp