Update ADOPTERS.md
Adding AT&T Israel R&D Center
- [ANNA Money](https://anna.money)
- [Apester](https://apester.com)
- [AppddictionStudio](https://appddicitonstudio.com)
+- [AT&T](<https://il.att.com/>)
- [Attest](https://www.askattest.com)
- [Bede Gaming](https://bedegaming.com)
- [Bink](https://bink.com)
