title: Function to make grid of images
body: <p>I do not know a lot of Pillow for python. I am trying to make a function to put multiple images into one. If there are 18 images, then the function would make a 3x6 grid of those images. If there is an odd amount of images it will still make the grid but with a blank image. If you know about Fortnite item shop bots, I wish to achieve an image like one of those.</p>
  <p><img src="https://i.stack.imgur.com/BOiRA.jpg" alt="Image I want" /></p>