fix install typo
fix install typo

jay3sh/vispy,jdreaver/vispy,michaelaye/vispy,bollu/vispy,jdreaver/vispy,Eric89GXL/vispy,Eric89GXL/vispy,hronoses/vispy,hronoses/vispy,jay3sh/vispy,hronoses/vispy,michaelaye/vispy,Eric89GXL/vispy,dchilds7/Deysha-Star-Formation,ghisvail/vispy,sh4wn/vispy,srinathv/vispy,inclement/vispy,julienr/vispy,RebeccaWPerry/vispy,srinathv/vispy,sbtlaarzc/vispy,julienr/vispy,jay3sh/vispy,drufat/vispy,bollu/vispy,inclement/vispy,sh4wn/vispy,kkuunnddaannkk/vispy,julienr/vispy,RebeccaWPerry/vispy,QuLogic/vispy,QuLogic/vispy,inclement/vispy,drufat/vispy,drufat/vispy,sbtlaarzc/vispy,michaelaye/vispy,RebeccaWPerry/vispy,dchilds7/Deysha-Star-Formation,sbtlaarzc/vispy,srinathv/vispy,ghisvail/vispy,kkuunnddaannkk/vispy,bollu/vispy,jdreaver/vispy,sh4wn/vispy,QuLogic/vispy,kkuunnddaannkk/vispy,ghisvail/vispy,dchilds7/Deysha-Star-Formation