📝 Document DGUS display options (#22443)

Marlin/Configuration.h

@@ -2535,11 +2535,33 @@
 // DGUS Touch Display with DWIN OS. (Choose one.)
 // ORIGIN : https://www.aliexpress.com/item/32993409517.html
 // FYSETC : https://www.aliexpress.com/item/32961471929.html
+// MKS    : https://www.aliexpress.com/item/1005002008179262.html
+//
+// Flash display with DGUS Displays for Marlin:
+//  - Format the SD card to FAT32 with an allocation size of 4kb.
+//  - Download files as specified for your type of display.
+//  - Plug the microSD card into the back of the display.
+//  - Boot the display and wait for the update to complete.
+//
+// ORIGIN (Marlin DWIN_SET)
+//  - Download https://github.com/coldtobi/Marlin_DGUS_Resources
+//  - Copy the downloaded DWIN_SET folder to the SD card.
+//
+// FYSETC (Supplier default)
+//  - Download https://github.com/FYSETC/FYSTLCD-2.0
+//  - Copy the downloaded SCREEN folder to the SD card.
+//
+// HIPRECY (Supplier default)
+//  - Download https://github.com/HiPrecy/Touch-Lcd-LEO
+//  - Copy the downloaded DWIN_SET folder to the SD card.
+//
+// MKS (MKS-H43) (Supplier default)
+//  - Download https://github.com/makerbase-mks/MKS-H43
+//  - Copy the downloaded DWIN_SET folder to the SD card.
 //
 //#define DGUS_LCD_UI_ORIGIN
 //#define DGUS_LCD_UI_FYSETC
 //#define DGUS_LCD_UI_HIPRECY
-
 //#define DGUS_LCD_UI_MKS
 #if ENABLED(DGUS_LCD_UI_MKS)
   #define USE_MKS_GREEN_UI