📝 Fix dead LCD link (MarlinFirmware#26669)

Author: minding-myown-business

Marlin/Configuration.h

@@ -3037,7 +3037,7 @@
 
 //
 // Factory display for Creality CR-10 / CR-7 / Ender-3
-// https://www.aliexpress.com/item/32833148327.html
+// https://marlinfw.org/docs/hardware/controllers.html#cr10_stockdisplay
 //
 // Connect to EXP1 on RAMPS and compatible boards.
 //