fixes typo in eigenvector.py
fixes typo in eigenvector.py

NvanAdrichem/networkx,chrisnatali/networkx,RMKD/networkx,bzero/networkx,jakevdp/networkx,ghdk/networkx,beni55/networkx,dhimmel/networkx,andnovar/networkx,farhaanbukhsh/networkx,jakevdp/networkx,cmtm/networkx,ghdk/networkx,nathania/networkx,farhaanbukhsh/networkx,jfinkels/networkx,jakevdp/networkx,kernc/networkx,bzero/networkx,kernc/networkx,bzero/networkx,debsankha/networkx,aureooms/networkx,harlowja/networkx,tmilicic/networkx,blublud/networkx,dmoliveira/networkx,kernc/networkx,SanketDG/networkx,farhaanbukhsh/networkx,JamesClough/networkx,yashu-seth/networkx,debsankha/networkx,harlowja/networkx,OrkoHunter/networkx,blublud/networkx,nathania/networkx,wasade/networkx,jcurbelo/networkx,ghdk/networkx,RMKD/networkx,harlowja/networkx,chrisnatali/networkx,RMKD/networkx,sharifulgeo/networkx,dmoliveira/networkx,dmoliveira/networkx,aureooms/networkx,blublud/networkx,ionanrozenfeld/networkx,sharifulgeo/networkx,Sixshaman/networkx,sharifulgeo/networkx,ltiao/networkx,chrisnatali/networkx,ionanrozenfeld/networkx,dhimmel/networkx,ionanrozenfeld/networkx,dhimmel/networkx,michaelpacer/networkx,nathania/networkx,goulu/networkx,debsankha/networkx,aureooms/networkx