Remove README.md

[suapapa]

arscons can used as skel for an sketch. like;

$ cp arscons my_sketch
$ cd my_sketch
$ git rename origin arscons_upsteam
$ git mv arscons.ino my_sketch.ino
$ git commit -m "Begin of my_sketch"

This is good because any update from arscons can easyly merged with current sketch:

$ git fetch arscons_upstream
$ git merge arscons_upstream/master

In this scenario, arscon's README.md will confilct if my_sketch has it's own READMD.md.

[bergey]

I checkout arscons in another directory, and symlink each AVR sketch to it. I guess this probably doesn't work on Windows.