Allow text and markdown files

Is there any way to allow us to include .txt and .md files in our Pinegrow Plugin projects? I just imported a Pinegrow desktop project and noticed that it wouldn’t allow me to keep my readme.txt file, which I use to track releases, changes, and other information. I also tend to keep a “” file in my projects while they are in development so I don’t miss anything and don’t have to track small to-dos in a separate place.