Create README.md

Create initial README.md with installation instructions taken from original forum post : 
http://forum.odroid.com/viewtopic.php?f=55&t=5053
Update README.md

Fix a few errors.
Update README.md

Fix a few errors.
Update README.md

Fix a few errors.
Update README.md

Fix a few errors.
Update README.md

Fix errors.
Update README.md

Fix errors.
Update README.md
Merge pull request #5 from hreikin/master

Created README.md