Updated README

Author: aure

README.md

@@ -17,9 +17,16 @@ This extension to AudioKit has the majority of old versions of AudioKit's DSP in
 
 See the [AudioKit Cookbook](https://github.com/AudioKit/Cookbook/) for examples.
 
-## Installation
+## Installation in Xcode 13
 
-Use Swift Package Manager and point to the URL: `https://github.com/AudioKit/SoundpipeAudioKit/`
+You can AudioKit and any of the other AudioKit libraries using Collections
+
+1. Select File -> Add Packages...
+2. Click the `+` icon on the bottom left of the Collections sidebar on the left.
+3. Choose `Add Swift Package Collection` from the pop-up menu.
+4. In the `Add Package Collection` dialog box, enter `https://swiftpackageindex.com/AudioKit/collection.json` as the URL and click the "Load" button.
+5. It will warn you that the collection is not signed, but it is fine, click "Add Unsigned Collection".
+6. Now you can add any of the AudioKit Swift Packages you need and read about what they do, right from within Xcode.
 
 ## Targets