New language: hu/hun/hungarian (gosimple#65)

Add more info to readme (gosimple#62)

Update gosimple/unidecode with performance improvements (gosimple#61)

Performance improvements thanks to @stefanb

Add Czech language (gosimple#59)

* feat: add czech language

* fix: fix wrong czech word for symbol @

Add benchmarking info to README

Style fixes in README.

Fix kkSub alphabetic order

Add language substitution for swedish (gosimple#37)

This adds a language substitution for & and @ in swedish.

Update doc.go with new Lowercase variable

Catch iso639-1 and iso639-3 language codes (gosimple#33)

* Format code with gofumports

* Catch also ISO 639-1 and ISO 639-3 lang codes

Added Turkish substitutions (gosimple#30)