fix http content-type meta tag for articles
fix http content-type meta tag for articles

barijaona/vienna-rss,barijaona/vienna-rss,barijaona/vienna-rss,barijaona/vienna-rss,josh64x2/vienna-rss,barijaona/vienna-rss,Eitot/vienna-rss,Eitot/vienna-rss,Eitot/vienna-rss,josh64x2/vienna-rss,josh64x2/vienna-rss,ViennaRSS/vienna-rss,josh64x2/vienna-rss,ViennaRSS/vienna-rss,ViennaRSS/vienna-rss,Eitot/vienna-rss,ViennaRSS/vienna-rss,josh64x2/vienna-rss,ViennaRSS/vienna-rss