📝 Add NOTICE.md for test data (#140)

* 📝 Add NOTICE.md for test data

* 🔧 Incl the NOTICE.md in sdist

MANIFEST.in

@@ -1,5 +1,5 @@
 include LICENSE README.md charset_normalizer/py.typed dev-requirements.txt
-recursive-include data *.srt
+recursive-include data *.md
 recursive-include data *.txt
 recursive-include docs *
 recursive-include tests *

data/NOTICE.md

@@ -0,0 +1,9 @@
+Included and Redistributed Files
+---------------------------------
+
+17 files are included in the source distribution tar. They are used to verify the standard functions of
+this library. They are mandatory to run `pytest` but not required to make the lib usable after install.
+They DO NOT guarantee that the detection-coverage will not regress.
+
+Those are EITHER pulled from Wikipedia _(CC-BY-SA)_ OR public domain archive.
+You SHALL NOT modify any of those files without explicit approval.