[scikit-learn] HOWTO fix your merge conflicts after we've applied `black`

[Adrin]

Hi,

This is to let you know that if you have an open PR, and you have merge
conflicts due to the fact that now we have applied `black` to the repo,
please refer to this issue
<https://github.com/scikit-learn/scikit-learn/issues/20301> which explains
how you can fix your merge conflicts.

Best,
Adrin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.python.org/pipermail/scikit-learn/attachments/20210623/72284a71/attachment.html>