docs.ext_github: Fix Python 2 compatibility.
docs.ext_github: Fix Python 2 compatibility.

jtsymon/livestreamer,chhe/livestreamer,bastimeyer/streamlink,derrod/livestreamer,fishscene/streamlink,intact/livestreamer,streamlink/streamlink,bastimeyer/streamlink,blxd/livestreamer,streamlink/streamlink,gravyboat/streamlink,gravyboat/streamlink,back-to/streamlink,sbstp/streamlink,mmetak/streamlink,beardypig/streamlink,okaywit/livestreamer,blxd/livestreamer,gtmanfred/livestreamer,chhe/livestreamer,Masaz-/livestreamer,charmander/livestreamer,melmorabity/streamlink,hmit/livestreamer,wlerin/streamlink,chhe/streamlink,wlerin/streamlink,flijloku/livestreamer,melmorabity/streamlink,caorong/livestreamer,derrod/livestreamer,beardypig/streamlink,flijloku/livestreamer,mmetak/streamlink,sbstp/streamlink,charmander/livestreamer,Klaudit/livestreamer,Saturn/livestreamer,Feverqwe/livestreamer,Dobatymo/livestreamer,wolftankk/livestreamer,okaywit/livestreamer,Klaudit/livestreamer,Masaz-/livestreamer,Saturn/livestreamer,ethanhlc/streamlink,programming086/livestreamer,hmit/livestreamer,fishscene/streamlink,Dobatymo/livestreamer,lyhiving/livestreamer,Feverqwe/livestreamer,back-to/streamlink,chrippa/livestreamer,intact/livestreamer,chhe/streamlink,caorong/livestreamer,lyhiving/livestreamer,gtmanfred/livestreamer,wolftankk/livestreamer,programming086/livestreamer,ethanhlc/streamlink,chrippa/livestreamer,jtsymon/livestreamer,javiercantero/streamlink,javiercantero/streamlink