Update README.md: fix broken license links and improve license section reference.

Author: byjg

README.md

@@ -4,7 +4,7 @@
 [![Build Status](https://github.com/byjg/php-authuser/actions/workflows/phpunit.yml/badge.svg?branch=master)](https://github.com/byjg/php-authuser/actions/workflows/phpunit.yml)
 [![Opensource ByJG](https://img.shields.io/badge/opensource-byjg-success.svg)](http://opensource.byjg.com)
 [![GitHub source](https://img.shields.io/badge/Github-source-informational?logo=github)](https://github.com/byjg/php-authuser/)
-[![GitHub license](https://img.shields.io/github/license/byjg/php-authuser.svg)](https://opensource.byjg.com/opensource/licensing.html)
+[![GitHub license](https://img.shields.io/github/license/byjg/php-authuser.svg)](https://opensource.byjg.com/license)
 [![GitHub release](https://img.shields.io/github/release/byjg/php-authuser.svg)](https://github.com/byjg/php-authuser/releases/)
 
 A simple and customizable library for user authentication in PHP applications using a clean repository and service layer architecture.
@@ -121,7 +121,7 @@ Because this project uses PHP Session you need to run the unit test the followin
 
 ## License
 
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+This project is licensed under the MIT License - see the [LICENSE](https://github.com/byjg/php-authuser/blob/master/LICENSE) file for details.
 
 ## Dependencies