Update support.md to include Jawnt (#26)

Author: safrazier17

docs/support.md

@@ -37,6 +37,7 @@ Cosign the principles to support an interoperable vision for the future of trans
 - [Interline](https://interline.io)
 - [Ito World](https://www.itoworld.com/)
 - [Jarvus Innovations](https://jarv.us/)
+- [Jawnt](https://www.jawntpass.com/)
 - [Kuba](https://www.kubapay.com/)
 - Albert Kochaphum, Individual
 - [Littlepay](https://littlepay.com/)