docs: update BACKERS

***NO_CI***

README.md

@@ -105,6 +105,7 @@ Support this project by becoming a sponsor. Your name will show up in the Contri
 - Kelly Wardrop ([@dropcoded](https://github.com/dropcoded))
 - Loki ([@binaryloki](https://github.com/binaryloki))
 - Mattias Johnson ([@mattiasJohnson](https://github.com/mattiasJohnson))
+- Mitchell Rowton ([@mrowton](https://github.com/mrowton))
 - M. Scott Ford ([@mscottford](https://github.com/mscottford))
 - Nina Reynolds ([@cutecycle](https://github.com/cutecycle))
 - Noel Cower ([@nilium](https://github.com/nilium))