Mention Perl binding in Readme

[wollmers]

There is a Perl binding on CPAN: Text::Levenshtein::Edlib

Seems to use an old version of edlib and it didn't install as I tried last on MacOS.

Maybe I will polish it on a "rainy weekend" at least as a convenient test frontend.

[Martinsos]

Hey @wollmers! Thanks for letting me know, it is cool that Edlib exists for Perl! Would you be up for creating a PR that adds it to README?

[wollmers]

@Martinsos

Sure, can do this.

But it would be better, to update the Perl binding to the latest version of edlib. The BioPerl community is still large.

Must contact the developer. If not responding, I can fork it under another name.