Extend to display multiple images on same page

[vvkv]

Thank you for this awesome tool. How would you recommend I go about extending this code so I can have 2 images being displayed on every page instead of just one? I understand that I would have a second variable $image_url2, for the other image but what are the other changes needed to make this possible? Thanks

[kyamagu]

@vvkv See #5