Add credits for the Italian translation

Author: avivace

src/thanks.md

@@ -15,3 +15,5 @@ Thank you to the [Rust language](https://www.rust-lang.org) team for making [mdB
 Greets to AYCE, Phantasy, TPPDevs/RainbowDevs, Plutiedev, lft/kryo :)
 
 Shoutouts to [Eievui](https://eievui.ml), [Rangi](https://github.com/Rangi42), [MarkSixtyFour](https://github.com/MarkSixtyFour), [ax6](https://github.com/aaaaaa123456789), [Baŝto](https://github.com/basxto), [bbbbbr](https://github.com/bbbbbr), and [bitnenfer](https://github.com/bitnenfer)!
+
+The Italian translation is curated by [Antonio Guido Leoni](https://github.com/Street-Philosopher), [Antonio Vivace](https://github.com/avivace), [Mattia Fortunati](https://github.com/MattiaFortunati) and [Daniele Scasciafratte](https://github.com/mte90).