add blog post for 2017 tech sessions preview
add blog post for 2017 tech sessions preview

mix-it/mixit,mixitconf/mixit,mixitconf/mixit,mix-it/mixit,sdeleuze/mixit,sdeleuze/mixit,mix-it/mixit,mix-it/mixit,sdeleuze/mixit,sdeleuze/mixit,mixitconf/mixit,mixitconf/mixit,mix-it/mixit