add utf-8 while reading README

[bhavitvyamalik]

It was causing tests to fail in Windows (see #2416). In Windows, the default encoding is CP1252 which is unable to decode the character byte 0x9d

[mariosasko]

Can you please add encoding to this line as well to fix the issue (and maybe replace path.open(...) with open(path, ...))?

datasets/src/datasets/utils/metadata.py

Line 58 in 7bee4be

with path.open() as readme_file:

[bhavitvyamalik]

Sure, in fact even I was thinking of adding this in order to maintain the consistency!

[lhoestq]

thanks for the fix !