tox.ini: fix comment
tox.ini: fix comment

gvanrossum/asyncio,1st1/asyncio,ajdavis/asyncio,1st1/asyncio,haypo/trollius,gsb-eng/asyncio,vxgmichel/asyncio,vxgmichel/asyncio,manipopopo/asyncio,Martiusweb/asyncio,haypo/trollius,gvanrossum/asyncio,ajdavis/asyncio,gsb-eng/asyncio,vxgmichel/asyncio,haypo/trollius,manipopopo/asyncio,1st1/asyncio,gsb-eng/asyncio,jashandeep-sohi/asyncio,gvanrossum/asyncio,jashandeep-sohi/asyncio,jashandeep-sohi/asyncio,Martiusweb/asyncio,ajdavis/asyncio,Martiusweb/asyncio,fallen/asyncio,fallen/asyncio,fallen/asyncio,manipopopo/asyncio