tox: Test docs building
tox: Test docs building

jodal/pyspotify,felix1m/pyspotify,jodal/pyspotify,kotamat/pyspotify,mopidy/pyspotify,felix1m/pyspotify,felix1m/pyspotify,mopidy/pyspotify,jodal/pyspotify,kotamat/pyspotify,kotamat/pyspotify