Starting point to go into detail (#28)

* Link to Cookbook instead repository

* remove uneeded markdown

* Added disclaimer that documentation lacks detail

* Added public keyword to the most prominent and useful structs, classes, attributes and initialisers

Sources/Keyboard/KeyContainer.swift

@@ -5,14 +5,20 @@ import Tonic
 
 /// This handles the interaction for key, so the user can provide their own
 /// visual representation.
-struct KeyContainer<Content: View>: View {
+public struct KeyContainer<Content: View>: View {
     let content: (Pitch, Bool) -> Content
 
     var pitch: Pitch
     @ObservedObject var model: KeyboardModel
 
     var zIndex: Int
 
+    /// Initialize the Container
+    /// - Parameters:
+    ///   - model: KeyboardModel holding all the keys
+    ///   - pitch: Pitch of this key
+    ///   - zIndex: Layering in z-axis
+    ///   - content: View defining how to render a specific key
     init(model: KeyboardModel,
          pitch: Pitch,
          zIndex: Int = 0,

Sources/Keyboard/Keyboard.docc/Keyboard.md

@@ -4,7 +4,7 @@ SwiftUI music keyboard
 
 ## Overview
 
-Code is hosted on Github: [](https://github.com/AudioKit/Keyboard/)
+See the [AudioKit Cookbook](https://github.com/AudioKit/Cookbook/) for examples and see the source code for API of all Keyboard elements. This documentation gives a rudimentary overview but lacks most of the finer details. 
 
 ![Demo Screenshot](demo)
 
@@ -21,8 +21,3 @@ Keyboard aims to be an easy-to-use musical keyboard with:
 - Good user interface
 - Good performance. We rely on SwiftUI's drag gestures
 
-## Topics
-
-### <!--@START_MENU_TOKEN@-->Group<!--@END_MENU_TOKEN@-->
-
-- <!--@START_MENU_TOKEN@-->``Symbol``<!--@END_MENU_TOKEN@-->

Sources/Keyboard/Keyboard.swift

@@ -7,7 +7,8 @@ import SwiftUI
 public struct Keyboard<Content>: View where Content: View {
     let content: (Pitch, Bool) -> Content
 
-    @StateObject var model: KeyboardModel = .init()
+    /// model  contains the keys, their status and touches
+    @StateObject public var model: KeyboardModel = .init()
 
     var latching: Bool
     var noteOn: (Pitch, CGPoint) -> Void

Sources/Keyboard/KeyboardModel.swift

@@ -3,7 +3,8 @@
 import SwiftUI
 import Tonic
 
-class KeyboardModel: ObservableObject {
+/// Observable model calling back on noteOn and noteOff and storing the touch locations
+public class KeyboardModel: ObservableObject {
     var keyRectInfos: [KeyRectInfo] = []
     var noteOn: (Pitch, CGPoint) -> Void = { _, _ in }
     var noteOff: (Pitch) -> Void = { _ in }
@@ -35,12 +36,13 @@ class KeyboardModel: ObservableObject {
         }
     }
 
-    @Published var touchedPitches = PitchSet() {
+    /// all touched notes
+    @Published public var touchedPitches = PitchSet() {
         willSet { triggerEvents(from: touchedPitches, to: newValue) }
     }
 
     /// Either latched keys or keys active due to external MIDI events.
-    @Published var externallyActivatedPitches = PitchSet() {
+    @Published public var externallyActivatedPitches = PitchSet() {
         willSet { triggerEvents(from: externallyActivatedPitches, to: newValue) }
     }
 

Sources/Keyboard/MIDIMonitorKeyboard.swift

@@ -9,8 +9,9 @@ extension GraphicsContext {
     }
 }
 
+/// MIDIMonitorKeyboard
 @available(iOS 15, macOS 12, *)
-struct MIDIMonitorKeyboard: View {
+public struct MIDIMonitorKeyboard: View {
 
     var layout: KeyboardLayout
     var activatedPitches: PitchSet