refs #79 : update readme

_quick&dirty install instructions for fetching and building sources_

Author: srejbi

README.md

@@ -1,4 +1,36 @@
-APDuinOS_workspace
-==================
+APDuinoProject-arduino
+======================
 
-Eclipse+AVR plugin based workspace with Arduino_Mega_2560 configuration
+Eclipse+AVR plugin based workspace with Arduino_Mega_2560 configuration
+
+Pre-requisites:
+* Arduino IDE 1.0 installed, USB communications to Arduino Mega 2560 established
+* Eclipse + AVR plugin installed
+* git or Eclipse egit plugin installed
+
+Install
+=======
+
+# mostly shell-based with git:
+<pre>
+mkdir <a new workspace dir>
+cd <workspace dir>
+
+# symlink or copy Arduino IDE files, choose between the following
+ln -s <path to Arduino IDE 1.0> ./arduino	# symlink Arduino IDE 1.0 to ${WORKSPACE_DIR}/arduino
+cp -r <path to Arduino IDE 1.0> ./arduino	# copy Arduino IDE 1.0 to ${WORKSPACE_DIR}/arduino
+
+git clone https://github.com/srejbi/APDuinoProject-arduino.git
+git submodule init
+git submodule update
+</pre>
+
+# In Eclipse, using egit
+* switch to a new workspace
+* import > Git > https://github.com/srejbi/APDuinoProject-arduino.git
+* tick submodule import and project creation
+
+_Additional steps:_
+_In any case, configure AVR plugin (Preferences/Arduino) after, set the Arduino IDE location to @${WORKSPACE_DIR}/arduino@ and Arduino libraries to @${WORKSPACE_DIR}/arduino/libraries@_
+_Also, select the 'Arduino Mega 2560 or Mega ADK'/'16000000' values on the Arduino project prefs of the 'arduino_headless' project in the workspace._
+_Build should work after._