add link to rendered pages site:

Author: poldrack

README.md

@@ -3,7 +3,9 @@ An open-source book on building better code for science using AI.
 
 Authors: [Russ Poldrack](http://poldrack.github.io), others TBD.
 
-Content will be posted on [Substack](https://russpoldrack.substack.com/p/better-code-better-science) and added here as it is released. A rendered version of the complete book to date will be coming shortly.
+Content will be posted on [Substack](https://russpoldrack.substack.com/p/better-code-better-science) and added here as it is released. 
+
+A rendered version of the complete book is available at [https://poldrack.github.io/BetterCodeBetterScience/](https://poldrack.github.io/BetterCodeBetterScience/).
 
 ### Table of contents (see [here](https://russpoldrack.substack.com/p/upcoming-content-for-better-code) for a more detailed roadmap)