HELP_BUILD_ERROR: link to Learn Guide

Author: dhalbert

py/mkrules.mk

@@ -11,7 +11,7 @@ ifeq ($(MICROPY_PREVIEW_VERSION_2),1)
 CFLAGS += -DMICROPY_PREVIEW_VERSION_2=1
 endif
 
-HELP_BUILD_ERROR ?= "See \033[1;31mAdafruit \"Building CircuitPython\" Learn Guide; Adafruit Discord \#circuitpython-dev\033[0m"
+HELP_BUILD_ERROR ?= "See \033[1;31mhttps://learn.adafruit.com/building-circuitpython; Adafruit Discord \#circuitpython-dev\033[0m"
 HELP_MPY_LIB_SUBMODULE ?= "\033[1;31mError: micropython-lib submodule is not initialized.\033[0m Run 'make submodules'"
 
 # Extra deps that need to happen before object compilation.