added arduino, modified build

arduino/libraries/SD/README.adoc

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+= SD Library for Arduino =
+
+The SD library allows for reading from and writing to SD cards.
+
+For more information about this library please visit us at
+http://www.arduino.cc/en/Reference/SD
+
+== License ==
+
+ Copyright (C) 2009 by William Greiman
+Copyright (c) 2010 SparkFun Electronics
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.