MMAB3AR

One of the pages of my website was previously created using markdown. I have NO IDEA how to use this. I was tasked with adding another bio to our bio page - the other bios have photos - I was able to make another bio box, copy and paste from other existing bio boxes and then modify information for the specific bio I am adding and that worked great! I've tried to copy and paste the image code and http links from the other bio markdowns and then modify for the image that I need, but it's not finding the image. Every time I reach out to SquareSpace, they say since there's custom code, they can't help me. Additionally, I need a pic on my main page to point to the bio that I'm trying to create but I don't know how to do that either. Any help would be appreciated.