update links for Makefile
-rw-r--r-- 5185 Makefile
-rw-r--r-- 1907 README
-rw-r--r-- 90 TODO
drwxr-xr-x - doc
drwxr-xr-x - misc
drwxr-xr-x - pcb
drwxr-xr-x - src
drwxr-xr-x - upstream