:space_invader: Added .gitattributes
:space_invader: Added .gitattributes

potahal/o365-tutorial,nguyenduyta/o365-tutorial,nguyenduyta/o365-tutorial,nguyenduyta/o365-tutorial,davechmsft/o365-tutorial,davechmsft/o365-tutorial,potahal/o365-tutorial,iambmelt/o365-tutorial,iambmelt/o365-tutorial,potahal/o365-tutorial,davechmsft/o365-tutorial,iambmelt/o365-tutorial