updated readme

Author: Ilya Sakovich

README.md

@@ -54,3 +54,4 @@ php artisan nova-lang:publish de,ru --force
 | Serbian | sr | completed | [marjanovicsteva](https://github.com/marjanovicsteva) |
 | Filipino | fil | completed | [granaderos](https://github.com/granaderos) |
 | Portuguese | pt | completed | [Pedrocssg](https://github.com/Pedrocssg) |
+| Basque | eu | completed | [JonPaternain](https://github.com/JonPaternain) |