Merge branch 'master' into bugfix/different-onSubmit-not-applied-to-s…

…ame-custom-keyboard-implementations

# Conflicts:
#	README.md

README.md

@@ -11,7 +11,7 @@ You can now build a Keyboard with 100% SwiftUI for your SwiftUI or UIKit App!
 - Works flawlessly on iOS and iPadOS
 
 ## Creating the Keyboard
-Simply extend the CustomKeyboard class and provide a static computed property and use the CustomKeyboardBuilder: 
+Simply extend the CustomKeyboard class and provide a static computed property and use the CustomKeyboardBuilder, additionally use the `UITextDocumentProxy` instance to modify/delete the focused text and move the cursor. Use the playSystemFeedback closure to play system sounds on `Button` presses: 
 ```swift
     extension CustomKeyboard {
         static var yesnt: CustomKeyboard {