Update README.md

updated to point to LICENSE file instead of LICENSE.txt also changed text from [MIT] to [LICENSE] to improve readability

Author: Jeffrey-Luszcz

README.md

@@ -14,7 +14,7 @@ Currently, this lab requires the environment provided at Microsoft Build 2025.
 
 ## License 
 
-This project is licensed under the terms of the MIT open source license. Please refer to [MIT](./LICENSE.txt) for the full terms.
+This project is licensed under the terms of the MIT open source license. Please refer to the [LICENSE](./LICENSE) for the full terms.
 
 ## Maintainers