Copy over content from vtbird extensions repository

[RichardLitt]

No reason for that to exist, anymore. Let's just move it all here.

[RichardLitt]

Started this work in branch "adding-vt-bird-content". Unfortunately, the React app seems to override the other pages, and I don't know how to have the subspecies folder by Jekyll, or how to add in individual pages in React dyanmically.

You'll probably have to install and use React Router (which I'd want to do, anyway), and then find a way to make the individual pages created dynamically from a data file. Alternatively, just scrap that idea, entirely, and find a way for it to ignore the subdirectory, and use a static site generator with Markdown files, because that's a bit easier for you personally to use, anyway.