update Call docs
update Call docs
jimyx17/gmusic,simon-weber/gmusicapi,nvbn/Unofficial-Google-Music-API,TheOpenDevProject/gmusicapi,dvirtz/gmusicapi,tanhaiwang/gmusicapi,dvirtz/gmusicapi,thebigmunch/gmusicapi,simon-weber/Unofficial-Google-Music-API,peetahzee/Unofficial-Google-Music-API