Merge 22a601e03f into 426f5688a4

README.md

 * [JSON Schema](https://github.com/jsonrainbow/json-schema) - A [JSON Schema](https://json-schema.org/) validation library.
 * [LibPhoneNumber for PHP](https://github.com/giggsey/libphonenumber-for-php) - A PHP implementation of Google's phone number handling library.
 * [MetaYaml](https://github.com/romaricdrigon/MetaYaml) - A schema validation library that supports YAML, JSON and XML.
+* [Numerik](https://github.com/Sqrcz/numerik) - A zero-dependency library for validating and parsing Polish identification numbers: PESEL, NIP, REGON, KRS, NRB, VAT-EU, IBAN, ID Card and Passport.
 * [Respect Validation](https://github.com/Respect/Validation) - A simple validation library.
 * [Symfony HTML Sanitizer](https://github.com/symfony/html-sanitizer) - An HTML sanitizer library.
 * [Valitron](https://github.com/vlucas/valitron) - Another validation library.