Updated Working on Raspberry Pi (markdown)

Working-on-Raspberry-Pi.md

@@ -48,6 +48,10 @@ NOTE: To use raylib on the Raspberry Pi desktop, you need to had previously inst
 sudo apt-get install --no-install-recommends raspberrypi-ui-mods lxterminal gvfs
 sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev libxrandr-dev libxi-dev libasound2-dev mesa-common-dev libgl1-mesa-dev
 ```
+To compile raylib in native mode on Raspberry Pi 4, you need the specific DRM libraries:
+```
+sudo apt-get install libdrm-dev libegl1-mesa-dev libgles2-mesa-dev libgbm-dev
+```
 raylib also works on [DietPi](https://dietpi.com/) distribution, following libraries are required:
 ```
 sudo apt-get libraspberrypi-dev raspberrypi-kernel-headers