Update installation doc.
Update installation doc.

mdavid/manos-spdy,jmptrader/manos,jacksonh/manos,jmptrader/manos,mdavid/manos-spdy,jmptrader/manos,jacksonh/manos,jacksonh/manos,jacksonh/manos,jacksonh/manos,mdavid/manos-spdy,jmptrader/manos,mdavid/manos-spdy,mdavid/manos-spdy,mdavid/manos-spdy,jmptrader/manos,jmptrader/manos,jmptrader/manos,jacksonh/manos,jmptrader/manos,jacksonh/manos,jacksonh/manos,mdavid/manos-spdy