add attribute description and fix markup
add attribute description and fix markup

alinanmorariu/styleguide,blandine/styleguide,GrayOverride/styleguide,alinanmorariu/styleguide,tiaoshi/styleguide,tiaoshi/styleguide,GrayOverride/styleguide,Teleopti/styleguide,GrayOverride/styleguide,alinanmorariu/styleguide,blandine/styleguide,tiaoshi/styleguide,Teleopti/styleguide,blandine/styleguide