Update README.md

Author: non-npc

README.md

@@ -81,9 +81,9 @@ Contributions are welcome! Please feel free to submit a Pull Request.
 
 ## License
 
-This project is licensed under GNU license - see the [LICENSE](LICENSE) file for details.
+This project is licensed under GPL license - see the [LICENSE](LICENSE) file for details.
 
 ## Acknowledgments
 
 - [Nuitka](https://nuitka.net/) - The Python compiler used in this project
-- [Tkinter](https://docs.python.org/3/library/tkinter.html) - The standard GUI library for Python
+- [Tkinter](https://docs.python.org/3/library/tkinter.html) - The standard GUI library for Python