v1.4.1 to update PIO

### Release v1.4.1

1. Update `platform.ini` and `library.json` to use original `khoih-prog` instead of `khoih.prog` after PIO fix
2. Update `Packages' Patches`

README.md

@@ -16,6 +16,7 @@
   * [Features](#features)
   * [Currently supported Boards](#currently-supported-boards)
   * [Currently supported WiFi shields/modules](#currently-supported-wifi-shieldsmodules)
+* [Changelog](changelog.md) 
 * [Prerequisites](#prerequisites)
 * [Installation](#installation)
   * [Use Arduino Library Manager](#use-arduino-library-manager)