README.md in pageflow-15.6.1 vs README.md in pageflow-15.7.0

@@ -12,12 +12,10 @@
 [pageflow.io](https://pageflow.io).
 
 * [Getting Started](https://github.com/codevise/pageflow/wiki/Getting-Started)
 * [Guides](https://github.com/codevise/pageflow/blob/master/doc/index.md)
 * [JavaScript API Reference of `pageflow` package](http://codevise.github.io/pageflow-docs/js/master/index.html)
-* [JavaScript API Reference of `pageflow-scrolled` package](http://codevise.github.io/pageflow-docs/scrolled/js/master/index.html)
-* [Theme API Reference](http://codevise.github.io/pageflow-docs/theme/master/index.html)
 * [List of Plugins](https://github.com/codevise/pageflow/wiki/List-of-Plugins)
 
 ## Updating
 
 For instructions on how to update from a prior version of the gem see
@@ -56,9 +54,10 @@
 * Node >= 10.18
 * Rails 4.2
 * Redis server (for Resque)
 * A database server supported by Active Record (tested with MySQL)
 * ImageMagick
+* [Audio Waveform Image Generator](https://github.com/bbc/audiowaveform#installation)
 
 Accounts of the following cloud services have to be registered:
 
 * [Amazon Web Services](http://aws.amazon.com) for S3 file storage and
   (optionally) Cloudfront content delivery