Typo in "Enabling Fixed Foveated Rendering" (#534)

Author: tudornicoara

README.md

@@ -92,7 +92,7 @@ If you got the game from the PC Xbox app, or from your PC Xbox Game Pass Subscri
 
 ## Enabling Fixed Foveated Rendering
 
-For RXT Cards, you can [install the Fixed Foveated Rendering addon](https://outerwildsmods.com/mods/nomaivrffr) to get better performance.
+For RTX Cards, you can [install the Fixed Foveated Rendering addon](https://outerwildsmods.com/mods/nomaivrffr) to get better performance.
 
 ## Enabling FSR