Replace Raspbian with Raspberry Pi OS

README.md

@@ -6,7 +6,7 @@ General Usage
 
 Shell script to setup the Raspberry Pi, Vero4K, ODroid-C1 or a PC running Ubuntu with many emulators and games, using EmulationStation as the graphical front end. Bootable pre-made images for the Raspberry Pi are available for those that want a ready-to-go system, downloadable from the releases section of GitHub or via our website at https://retropie.org.uk.
 
-This script is designed for use on Raspbian on the Raspberry Pi, OSMC on the Vero4K or Ubuntu on the ODroid-C1 or a PC.
+This script is designed for use on Raspberry Pi OS (previously called Raspbian) on the Raspberry Pi, OSMC on the Vero4K or Ubuntu on the ODroid-C1 or a PC.
 
 To run the RetroPie Setup Script make sure that your APT repositories are up-to-date and that Git is installed: