Makefile: add some instructions about how to get he include files

diff --git a/Makefile b/Makefile
index fa051fa..b4b9cb8 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,11 @@
 PART_NUMBER = bbb-gpio-keypad
 VERSION = 00A0
 
-INCLUDE_PATH = /home/debian/bb.org-overlays/include
+# To get the include files, clone the repository from
+# https://github.com/beagleboard/bb.org-overlays.git
+# parallel to this directory.
+
+INCLUDE_PATH = ../bb.org-overlays/include
 
 compile: $(PART_NUMBER)-$(VERSION).dtbo