create entry for version 1.1.1 in changelog

Author: Adrian-Samoticha

CHANGELOG.md

@@ -1,4 +1,7 @@
-## 1.1.0
+## 1.1.1
+- Hotfix: Fix accidental breaking change in directory structure in 1.1.0.
+
+## 1.1.0 (retracted)
 - Add an abstract `NSWindowDelegate` that can be used to listen to events provided by [NSWindowDelegate](https://developer.apple.com/documentation/appkit/nswindowdelegate) such as window resizing, moving, exposing, and minimizing. The following methods are currently supported:
   -  Managing Sheets
      - `windowWillBeginSheet`