Add quick guide into the readme
-rw-r--r-- 1100 .gitignore
-rw-r--r-- 8880 Readme.scons.txt
-rw-r--r-- 1129 SConstruct
drwxr-xr-x - android
-rw-r--r-- 216 arduino.scons
-rwxr-xr-x 2866 auto_build.sh
drwxr-xr-x - build_common
drwxr-xr-x - examples
drwxr-xr-x - extlibs
-rw-r--r-- 1448 extra_options.scons
drwxr-xr-x - resource
-rw-r--r-- 9019 scons_script_how_to.txt
drwxr-xr-x - service
drwxr-xr-x - tools