Update README.md

Signed-off-by: kwrobel.eth <djstrong@gmail.com>

Author: djstrong

README.md

@@ -10,7 +10,7 @@
   *  This library is being maintained by the team at [NameHash Labs](https://namehashlabs.org) as part of the greater [NameGuard](https://nameguard.io) solution to help protect the ENS community.
 * Passes **100%** of the [official validation tests](https://github.com/adraffy/ens-normalize.js/tree/main/validate) (validated automatically with pytest on Linux, MacOS, and Windows, see below for details).
 * Passes an [additional suite of further tests](/tools/updater/update-ens.js#L54) for compatibility with the official [Javascript reference implementation](https://github.com/adraffy/ens-normalize.js) and code testing coverage.
-* Original implementation based on [JavaScript implementation version 1.9.0](https://github.com/adraffy/ens-normalize.js/tree/4873fbe6393e970e186ab57860cc59cbbb1fa162).
+* Up-to-date with ENS Normalize reference implementation as of Unicode version 16.0.
 
 ## Glossary