Example of VPATH added

README.md

@@ -14,12 +14,16 @@ The sources of your project must be set inside the Makefile, in the FPU_SRC and
 NONFPU_SRC variables. The VPATH can be used to automatically locate them in 
 your source tree:
 
+    VPATH=src:Library/foo:Library/bar:...
+
     NONFPU_SRC=          \
     	init.c           \
-    	${EDISOFT_SRC}
+    	tasking.c        \
+        ...
     
-    FPU_SRC=              \
-    	gnc.c
+    FPU_SRC=             \
+    	gnc.c            \
+    	compute_pi.c
     
 As their names suggest, you add a file in the FPU_SRC list
 if you want it to be compiled for native FPU use (i.e. without `-msoft-float`).