Better notation and some documentation fixes.
Better notation and some documentation fixes.

harlowja/networkx,blublud/networkx,kernc/networkx,aureooms/networkx,yashu-seth/networkx,debsankha/networkx,michaelpacer/networkx,chrisnatali/networkx,JamesClough/networkx,RMKD/networkx,aureooms/networkx,debsankha/networkx,tmilicic/networkx,RMKD/networkx,jni/networkx,goulu/networkx,jtorrents/networkx,dhimmel/networkx,NvanAdrichem/networkx,ghdk/networkx,harlowja/networkx,blublud/networkx,ionanrozenfeld/networkx,wasade/networkx,kai5263499/networkx,nathania/networkx,nathania/networkx,sharifulgeo/networkx,jfinkels/networkx,ionanrozenfeld/networkx,beni55/networkx,sharifulgeo/networkx,OrkoHunter/networkx,jtorrents/networkx,ltiao/networkx,jakevdp/networkx,farhaanbukhsh/networkx,Sixshaman/networkx,dmoliveira/networkx,kai5263499/networkx,RMKD/networkx,ghdk/networkx,jakevdp/networkx,debsankha/networkx,SanketDG/networkx,dhimmel/networkx,farhaanbukhsh/networkx,dhimmel/networkx,dmoliveira/networkx,aureooms/networkx,jni/networkx,jcurbelo/networkx,sharifulgeo/networkx,bzero/networkx,jakevdp/networkx,farhaanbukhsh/networkx,chrisnatali/networkx,jni/networkx,harlowja/networkx,blublud/networkx,dmoliveira/networkx,bzero/networkx,ghdk/networkx,cmtm/networkx,kernc/networkx,nathania/networkx,kai5263499/networkx,chrisnatali/networkx,ionanrozenfeld/networkx,bzero/networkx,andnovar/networkx,kernc/networkx