Added build and coverage badges
Added build and coverage badges

jphnoel/udata,grouan/udata,etalab/udata,jphnoel/udata,opendatateam/udata,davidbgk/udata,jphnoel/udata,opendatateam/udata,grouan/udata,opendatateam/udata,etalab/udata,etalab/udata,grouan/udata,davidbgk/udata,davidbgk/udata