fix API spec on POST /videos/upload and provide Shell example
fix API spec on POST /videos/upload and provide Shell example

Green-Star/PeerTube,Chocobozzz/PeerTube,Chocobozzz/PeerTube,Green-Star/PeerTube,Green-Star/PeerTube,Chocobozzz/PeerTube,Green-Star/PeerTube,Chocobozzz/PeerTube