Request to Add LICENSE File

[shreyara0]

I noticed that the repository currently lacks a LICENSE file. Adding a license is important for clarifying how the code can be used.
Could you please consider adding a LICENSE file to the repository? This will help ensure that users understand the terms under which the code is provided.

Thank you!

[Fokko]

In the README.md it states:

SMHasher is released under the MIT license.

Still, it would be good to have the license mentioned explicitly in a LICENSE file :)