Is there a way to embed an image URL in the spec so that it displays the image in Swagger-UI?

Thanks.  Tracked this down to two separate issues in the end:

1. My GFM was incorrect - using square brackets instead of parentheses for the URL.
2. I'm using flask_swagger to generate the OpenAPI.  Because this scans docstrings, it's usual to have extra indentation at the beginning of each line.  In certain cases, flask_swagger doesn't strip this out and so my image link was being treated as preformatted text.