On the main home-page, I created thumbnail images per “card”. You can see in index.html the format to add images, which I save to
/assets/thumbnails. Note that for consistency, each image is 300x200px.
You’ll see for some pages, I have a background image. The css to have the image in the background is built into the template, so
to add a background image, all you need to do is add background_image: to the front matter, e.g.
---
layout: doc
title: "Downtime"
order: 15
background_image: /assets/images/tavern_brawl.jpg
---
Internal Images (saved onto the site):

External Images:

To credit an image, we need to use an html tag (span class=”image caption”):
<span class="image-caption">Dragon Magazine #300</span>
You can also insert links to the caption, but require the HTML tag instead of markdown:
<span class="image-caption"><a href="https://cdnb.artstation.com/p/assets/images/images/021/394/125/4k/logan-feliciano-bonespire-002s.jpg?1571510286">Bone Spire by logan-feliciano</a></span>