add also.js [production]

Author: ajm19826

books/index.html

@@ -6,6 +6,7 @@
   <script src="https://www.gstatic.com/firebasejs/8.10.0/firebase-auth.js"></script>
   <script src="https://houselearning.org/home/main.js"></script>
   <script src="https://houselearning.org/feedback.js"></script>
+  <script type="module" src="https://www.houselearning.org/also.js"></script>
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />
   <title>Books & Videos | SafeLibrary</title>