This package includes data derived from the Unicode data files. While some indication is available, the corresponding Unicode-3.0 license (https://www.unicode.org/license.txt) requires to include the corresponding license/notice inside the distribution or docs. This does not seem to be the case.

The preferred way would be to include the corresponding license/notice into the existing license files (or a dedicated license file) to fulfill this requirement from your side, but make it easy for users of your library to include proper attribution as well.