add updater on changelog

Author: Liiesl

changelog.md

@@ -1,6 +1,7 @@
 ### **After Installation, Add Installed Folder Antivirus Exclusion BEFORE First Launch!** otherwise windows defender will likely quarantine or delete the main executable file. see [Documentation](https://docs.easyscanlate.site/getting-started/installation/#crucial-step-add-antivirus-exclusion-before-first-launch) for more detail
 
 ### Added
+- proper updater and in app update
 - context fill.
 - hide text
 - ocr override dialog confirmation