Improve documentation of GraphVisual
Improve documentation of GraphVisual

ghisvail/vispy,Eric89GXL/vispy,drufat/vispy,drufat/vispy,ghisvail/vispy,ghisvail/vispy,michaelaye/vispy,Eric89GXL/vispy,Eric89GXL/vispy,michaelaye/vispy,michaelaye/vispy,drufat/vispy