standardizing License.txt to LICENSE, updating with a proper MIT LICENSE

[Shubhashish-Chakraborty]

The repository currently uses License.txt for its license file. The standard convention is to use LICENSE .

Proposed Change

• I propose renaming the file from License.txt to LICENSE.
• basically updating its content in a proper MIT LICENSE format!

Reason

This change will allow GitHub's tooling to automatically detect and display the repository's license (MIT) in the repository header. This improves visibility and makes it immediately clear to all visitors and potential contributors what the licensing terms are.

This is a non-code change that improves project standards and maintainability.
Iam making a PULL REQUEST 😄