README.md in scrapbook-0.2.2 vs README.md in scrapbook-0.3.0

@@ -115,9 +115,15 @@
 ```
 
 (Note, the "tailwindcss-rails" gem currently doesn't support Rails engines, so we have to
 install and run Tailwind manually.)
 
+## Updating the Turbo javascript
+
+- Download the compiled JS file from the turbo rails gem. (The releases on the Turbo website
+  didn't include it.)
+- Comment out or remove the `export` statement towards the end.
+
 ## License
 
 Copyright 2022 Brad Lindsay
 
 Licensed under the Apache License, Version 2.0 (the "License");