Marcus Rashford will feature on the cover of British Vogue's activist-themed September issue.The Manchester United star, who led a campaign against child poverty, will feature on the front page with model Adwoa Aboah.The player, from Wythenshawe, tweeted the front cover, saying it was a 'bit of a surreal moment'.Editor Edward Enninful said the issue is a "rallying cry for the future" and includes 40 activists described as "The Faces of Hope".The September issue is traditionally the fashion