Bayan shafe fiye da shekaru 10 ba a yi ba saboda rikicin Boko Haram, ‘yan kabilar Igbo a jihar Borno da ke arewa maso gabashin Najeriya sun gudanar da kasaitaccen bikin al’adarsu da aka fi sani da Yam Festival, ko bikin doya, a Maiduguri, da wasu rahotanni.