Documentation of Best Match (?b) flag

[StefanRoss]

Thanks for the great library, this is very helpful!

We've got some patterns starting with (?b), which we must have copied from StackOverflow...I can't find any reference to this flag in the documentation. It would be great if some could be added.

Thanks!

[facelessuser]

I believe that is BESTMATCH for fuzzy matching.

[StefanRoss]

Thanks. I've managed to find this on StackOverflow. I think it would be helpful to add to the documentation, e.g. here: https://pypi.org/project/regex/ BESTMATCH is mentioned, but not (?b)