Add changelog of v1.5.0-alpha.1

CHANGELOG.md

@@ -2,6 +2,23 @@
 
 <!--ENTER CHANGELOG HERE-->
 
+## 1.5.0-alpha.1 (2022-09-02)
+
+* Add temporary painter
+* Add new painters
+  * Hand
+  * Undo
+  * Redo
+* Remove hand, undo, redo buttons from general gui
+* Improve UI and UX problems ([#280](https://github.com/LinwoodCloud/Butterfly/issues/280))
+  * Reset pointer on app hide
+  * Add default behavior to not ask for area name
+* Add option to load images, pdfs and svgs from open dialog
+* Add option to start the app in full screen mode
+* Fix gesture issues on area and shape painter
+* Fix area change problem
+* Fix divider on top right in native title bar mode
+
 ## 1.5.0-alpha.0 (2022-08-26)
 
 * Add macos support (Thanks to batuhand)