Add deployment status badge

Author: kefortney

README.md

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 # Transform to Open Science (TOPS)
 
+[![Deploy Book](https://github.com/kefortney/Transform-to-Open-Science/actions/workflows/book.yml/badge.svg?branch=main)](https://github.com/kefortney/Transform-to-Open-Science/actions/workflows/book.yml)
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 ## Introduction
 
 Want a website instead of a GitHub repo? [https://nasa.github.io/Transform-to-Open-Science/](https://nasa.github.io/Transform-to-Open-Science/)