License missing

[thaarok]

Hi, I would like to use contracts from this repo in our chain, however this repo does not specify license.
Would be possible to add license file into this repository?

As discussed in following StackExchange, the license file is necessary if creating of derived work should be legal:
https://opensource.stackexchange.com/a/1721

Also, SOL files compilation currently produce following warning when the license is missing in the SOL files headers:

Warning: SPDX license identifier not provided in source file. Before publishing, consider adding a comment containing "SPDX-License-Identifier: " to each source file. Use "SPDX-License-Identifier: UNLICENSED" for non-open-source code. Please see https://spdx.org for more information.

Please, if you agree with considering this opensource, add the license to at least one of these places.
Thanks!