Updated Working on Raspberry Pi (markdown)

Working-on-Raspberry-Pi.md

@@ -9,11 +9,9 @@ Official OS supported is [Raspberry Pi OS](https://www.raspberrypi.org/software/
  - Raspberry Pi 1 (all models)
  - Raspberry Pi 2 (all models)
  - Raspberry Pi 3 (all models)
- - _Raspberry Pi 4 (PLATFORM_DESKTOP only!)_
-
-_NOTE: Currently **Raspberry Pi 4** native mode compilation is not supported, for further information just [check this issue](https://github.com/raysan5/raylib/issues/1041)._
-
+ - Raspberry Pi 4 (all models)
 
+_NOTE: **Raspberry Pi 4** native mode compilation requires `PLATFORM_DRM` compilation flag instead of `PLATFORM_RPI`!_
 
 ### Supported OpenGL backends
 
@@ -32,9 +30,15 @@ Before you can use raylib in your project you will have to compile it, but this
 Just navigate to `raylib\src\` directory and run one of the following options depending on your needs:
 
 1. To use OpenGL ES 2.0 in native mode (no X11):
+
+On Rapberry Pi 0-3:
 ```
 make PLATFORM=PLATFORM_RPI
 ```
+On Rapberry Pi 4:
+```
+make PLATFORM=PLATFORM_DRM
+```
 2. To use desktop OpenGL 1.1 or 2.1 (X11 window)
 ```
 make PLATFORM=PLATFORM_DESKTOP GRAPHICS=GRAPHICS_API_OPENGL_21
@@ -55,9 +59,15 @@ sudo apt-get install build-essential
 Just move to folder `raylib/examples/` and run **ONE of THOSE TWO OPTIONS** (depending on target OpenGL version):
 
 1. To use OpenGL ES 2.0 in native mode (no X11):
+
+On Rapberry Pi 0-3:
 ```
 make PLATFORM=PLATFORM_RPI
 ```
+On Rapberry Pi 4:
+```
+make PLATFORM=PLATFORM_DRM
+```
 2. To use desktop OpenGL 1.1 or 2.1 (X11 window)
 ```
 make PLATFORM=PLATFORM_DESKTOP GRAPHICS=GRAPHICS_API_OPENGL_21
@@ -66,9 +76,16 @@ make PLATFORM=PLATFORM_DESKTOP GRAPHICS=GRAPHICS_API_OPENGL_21
 To compile just one specific example:
 
 1. To use OpenGL ES 2.0 in native mode (no X11):
+
+On Rapberry Pi 0-3:
 ```
 make core/core_basic_window PLATFORM=PLATFORM_RPI
 ```
+On Rapberry Pi 4:
+```
+make core/core_basic_window PLATFORM=PLATFORM_DRM
+```
+
 2. To use desktop OpenGL 1.1 or 2.1 (X11 window)
 ```
 make core/core_basic_window PLATFORM=PLATFORM_DESKTOP GRAPHICS=GRAPHICS_API_OPENGL_21