chore: update license to MIT and update README

Author: iosifidisvasileios

LICENSE

@@ -1,15 +1,21 @@
-Dual License Notice
+MIT License
 
-Copyright (c) 2026 Vasileios Iosifidis
+Copyright (c) [2026] [Dr. Vasileios Iosifidis]
 
-This project is offered under a dual-license model:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-1) Non-Commercial License (free) — see LICENSE-NONCOMMERCIAL
-   You may use, copy, modify, and distribute this project for Non-Commercial Use only.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-2) Commercial License (paid/permission) — see LICENSE-COMMERCIAL
-   Any Commercial Use requires a separate written commercial license agreement from the Licensor.
-
-If you are unsure whether your use is Commercial Use, treat it as Commercial and contact:
-billiosifidis@gmail.com
-v-iosifidis.com
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.