added files of the first version/sketch of 'Tutorial: Using Susy and Responsive Grids sample from NET TUTS+' - contents/sass-compass-susy.md and related images in contents/img/sass-compass-susy/*)
\contents\sass-compass-susy.md markdown edits, two screenshots updated
Some more \contents\sass-compass-susy.md markdown edits
Merge pull request #4 from ShamilS/susy_and_compass

Susy and compass