Minor fixes in hierarchy documentation.
Minor fixes in hierarchy documentation.

rmcgibbo/scipy,mortonjt/scipy,e-q/scipy,anielsen001/scipy,lhilt/scipy,pyramania/scipy,matthew-brett/scipy,jor-/scipy,surhudm/scipy,richardotis/scipy,kleskjr/scipy,Dapid/scipy,argriffing/scipy,sauliusl/scipy,fredrikw/scipy,Eric89GXL/scipy,nvoron23/scipy,Newman101/scipy,zaxliu/scipy,hainm/scipy,andim/scipy,aeklant/scipy,arokem/scipy,woodscn/scipy,mdhaber/scipy,njwilson23/scipy,gdooper/scipy,sonnyhu/scipy,fredrikw/scipy,jamestwebber/scipy,maciejkula/scipy,dch312/scipy,niknow/scipy,pschella/scipy,zxsted/scipy,matthew-brett/scipy,zxsted/scipy,piyush0609/scipy,gef756/scipy,mortada/scipy,maniteja123/scipy,vanpact/scipy,gfyoung/scipy,felipebetancur/scipy,surhudm/scipy,FRidh/scipy,ndchorley/scipy,scipy/scipy,mdhaber/scipy,raoulbq/scipy,piyush0609/scipy,mhogg/scipy,pnedunuri/scipy,jonycgn/scipy,mdhaber/scipy,Newman101/scipy,ndchorley/scipy,gfyoung/scipy,sargas/scipy,mgaitan/scipy,futurulus/scipy,zaxliu/scipy,apbard/scipy,ales-erjavec/scipy,bkendzior/scipy,Kamp9/scipy,maciejkula/scipy,aarchiba/scipy,niknow/scipy,mingwpy/scipy,argriffing/scipy,mortonjt/scipy,nvoron23/scipy,ndchorley/scipy,minhlongdo/scipy,minhlongdo/scipy,andim/scipy,Gillu13/scipy,matthewalbani/scipy,teoliphant/scipy,gertingold/scipy,gertingold/scipy,mortada/scipy,jsilter/scipy,Dapid/scipy,vanpact/scipy,andim/scipy,fernand/scipy,larsmans/scipy,cpaulik/scipy,richardotis/scipy,vberaudi/scipy,mhogg/scipy,cpaulik/scipy,ortylp/scipy,dominicelse/scipy,Dapid/scipy,sriki18/scipy,grlee77/scipy,zxsted/scipy,ales-erjavec/scipy,mgaitan/scipy,mhogg/scipy,woodscn/scipy,efiring/scipy,anntzer/scipy,maniteja123/scipy,behzadnouri/scipy,sriki18/scipy,lukauskas/scipy,rgommers/scipy,person142/scipy,sonnyhu/scipy,endolith/scipy,efiring/scipy,mikebenfield/scipy,ortylp/scipy,grlee77/scipy,zaxliu/scipy,anielsen001/scipy,haudren/scipy,zaxliu/scipy,jonycgn/scipy,kalvdans/scipy,grlee77/scipy,teoliphant/scipy,Newman101/scipy,Eric89GXL/scipy,Eric89GXL/scipy,ndchorley/scipy,Shaswat27/scipy,pizzathief/scipy,haudren/scipy,sriki18/scipy,anielsen001/scipy,WillieMaddox/scipy,hainm/scipy,Shaswat27/scipy,josephcslater/scipy,mikebenfield/scipy,gef756/scipy,sonnyhu/scipy,gef756/scipy,Shaswat27/scipy,minhlongdo/scipy,fredrikw/scipy,sriki18/scipy,Shaswat27/scipy,efiring/scipy,piyush0609/scipy,WarrenWeckesser/scipy,mhogg/scipy,pnedunuri/scipy,jseabold/scipy,matthew-brett/scipy,jamestwebber/scipy,bkendzior/scipy,mikebenfield/scipy,arokem/scipy,nmayorov/scipy,WarrenWeckesser/scipy,maciejkula/scipy,endolith/scipy,ilayn/scipy,WarrenWeckesser/scipy,maniteja123/scipy,nvoron23/scipy,jjhelmus/scipy,woodscn/scipy,petebachant/scipy,vhaasteren/scipy,rmcgibbo/scipy,nonhermitian/scipy,josephcslater/scipy,scipy/scipy,vigna/scipy,felipebetancur/scipy,mortonjt/scipy,WarrenWeckesser/scipy,jor-/scipy,sauliusl/scipy,chatcannon/scipy,pbrod/scipy,jsilter/scipy,fernand/scipy,pschella/scipy,ChanderG/scipy,aman-iitj/scipy,newemailjdm/scipy,mtrbean/scipy,fredrikw/scipy,grlee77/scipy,mdhaber/scipy,hainm/scipy,befelix/scipy,mortada/scipy,newemailjdm/scipy,arokem/scipy,WillieMaddox/scipy,argriffing/scipy,mingwpy/scipy,grlee77/scipy,pnedunuri/scipy,aarchiba/scipy,matthewalbani/scipy,ales-erjavec/scipy,nvoron23/scipy,kleskjr/scipy,josephcslater/scipy,lukauskas/scipy,jakevdp/scipy,e-q/scipy,ilayn/scipy,zxsted/scipy,kleskjr/scipy,pizzathief/scipy,befelix/scipy,andim/scipy,chatcannon/scipy,jjhelmus/scipy,mortonjt/scipy,pyramania/scipy,Shaswat27/scipy,vberaudi/scipy,kleskjr/scipy,ogrisel/scipy,giorgiop/scipy,rmcgibbo/scipy,dominicelse/scipy,argriffing/scipy,ogrisel/scipy,Gillu13/scipy,njwilson23/scipy,nvoron23/scipy,ChanderG/scipy,fredrikw/scipy,sauliusl/scipy,perimosocordiae/scipy,larsmans/scipy,vhaasteren/scipy,chatcannon/scipy,njwilson23/scipy,mikebenfield/scipy,Srisai85/scipy,dominicelse/scipy,sonnyhu/scipy,felipebetancur/scipy,woodscn/scipy,trankmichael/scipy,anntzer/scipy,surhudm/scipy,jor-/scipy,futurulus/scipy,argriffing/scipy,mtrbean/scipy,mingwpy/scipy,mtrbean/scipy,mortada/scipy,pyramania/scipy,endolith/scipy,niknow/scipy,jor-/scipy,jseabold/scipy,cpaulik/scipy,vigna/scipy,perimosocordiae/scipy,chatcannon/scipy,efiring/scipy,surhudm/scipy,witcxc/scipy,Kamp9/scipy,giorgiop/scipy,haudren/scipy,sauliusl/scipy,richardotis/scipy,futurulus/scipy,newemailjdm/scipy,lhilt/scipy,nonhermitian/scipy,niknow/scipy,ogrisel/scipy,scipy/scipy,vigna/scipy,mdhaber/scipy,Stefan-Endres/scipy,mortonjt/scipy,befelix/scipy,kleskjr/scipy,ChanderG/scipy,sauliusl/scipy,hainm/scipy,zerothi/scipy,josephcslater/scipy,gef756/scipy,mgaitan/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,lhilt/scipy,matthewalbani/scipy,newemailjdm/scipy,Eric89GXL/scipy,raoulbq/scipy,WillieMaddox/scipy,FRidh/scipy,e-q/scipy,hainm/scipy,ogrisel/scipy,vberaudi/scipy,mingwpy/scipy,trankmichael/scipy,felipebetancur/scipy,trankmichael/scipy,person142/scipy,mortonjt/scipy,aarchiba/scipy,rgommers/scipy,gdooper/scipy,petebachant/scipy,perimosocordiae/scipy,vberaudi/scipy,gdooper/scipy,Newman101/scipy,matthew-brett/scipy,sriki18/scipy,rmcgibbo/scipy,pizzathief/scipy,Stefan-Endres/scipy,haudren/scipy,petebachant/scipy,richardotis/scipy,jjhelmus/scipy,kalvdans/scipy,lukauskas/scipy,newemailjdm/scipy,maniteja123/scipy,Stefan-Endres/scipy,ilayn/scipy,piyush0609/scipy,minhlongdo/scipy,gef756/scipy,perimosocordiae/scipy,vhaasteren/scipy,nvoron23/scipy,minhlongdo/scipy,tylerjereddy/scipy,scipy/scipy,zerothi/scipy,perimosocordiae/scipy,ales-erjavec/scipy,dch312/scipy,mtrbean/scipy,mingwpy/scipy,vigna/scipy,tylerjereddy/scipy,pnedunuri/scipy,anntzer/scipy,Gillu13/scipy,mtrbean/scipy,woodscn/scipy,lukauskas/scipy,petebachant/scipy,petebachant/scipy,lhilt/scipy,cpaulik/scipy,tylerjereddy/scipy,dch312/scipy,vhaasteren/scipy,cpaulik/scipy,ales-erjavec/scipy,tylerjereddy/scipy,bkendzior/scipy,bkendzior/scipy,witcxc/scipy,ortylp/scipy,lukauskas/scipy,FRidh/scipy,pbrod/scipy,trankmichael/scipy,petebachant/scipy,teoliphant/scipy,vanpact/scipy,pbrod/scipy,andyfaff/scipy,raoulbq/scipy,larsmans/scipy,nonhermitian/scipy,fernand/scipy,anielsen001/scipy,rmcgibbo/scipy,aman-iitj/scipy,sargas/scipy,felipebetancur/scipy,mgaitan/scipy,maciejkula/scipy,futurulus/scipy,argriffing/scipy,Srisai85/scipy,WillieMaddox/scipy,Gillu13/scipy,ortylp/scipy,jsilter/scipy,Eric89GXL/scipy,aarchiba/scipy,Kamp9/scipy,futurulus/scipy,trankmichael/scipy,andim/scipy,anielsen001/scipy,juliantaylor/scipy,WillieMaddox/scipy,behzadnouri/scipy,larsmans/scipy,nmayorov/scipy,pbrod/scipy,pizzathief/scipy,andyfaff/scipy,zerothi/scipy,zerothi/scipy,Srisai85/scipy,Newman101/scipy,arokem/scipy,befelix/scipy,rgommers/scipy,sriki18/scipy,witcxc/scipy,giorgiop/scipy,person142/scipy,endolith/scipy,fernand/scipy,anielsen001/scipy,Srisai85/scipy,dch312/scipy,pbrod/scipy,jseabold/scipy,larsmans/scipy,ales-erjavec/scipy,efiring/scipy,vhaasteren/scipy,zaxliu/scipy,njwilson23/scipy,mtrbean/scipy,andyfaff/scipy,jjhelmus/scipy,ortylp/scipy,zxsted/scipy,gertingold/scipy,Stefan-Endres/scipy,chatcannon/scipy,jonycgn/scipy,pschella/scipy,fernand/scipy,dominicelse/scipy,mingwpy/scipy,raoulbq/scipy,aman-iitj/scipy,pnedunuri/scipy,vanpact/scipy,mortada/scipy,maciejkula/scipy,pyramania/scipy,andyfaff/scipy,anntzer/scipy,aeklant/scipy,maniteja123/scipy,rgommers/scipy,nmayorov/scipy,pschella/scipy,mdhaber/scipy,FRidh/scipy,Newman101/scipy,sargas/scipy,efiring/scipy,nmayorov/scipy,jamestwebber/scipy,pbrod/scipy,mikebenfield/scipy,apbard/scipy,lukauskas/scipy,futurulus/scipy,jseabold/scipy,nmayorov/scipy,ndchorley/scipy,sonnyhu/scipy,apbard/scipy,WillieMaddox/scipy,zerothi/scipy,zxsted/scipy,niknow/scipy,larsmans/scipy,ChanderG/scipy,jamestwebber/scipy,jonycgn/scipy,chatcannon/scipy,kalvdans/scipy,e-q/scipy,richardotis/scipy,apbard/scipy,aman-iitj/scipy,piyush0609/scipy,sargas/scipy,jseabold/scipy,Dapid/scipy,giorgiop/scipy,jsilter/scipy,cpaulik/scipy,jseabold/scipy,zaxliu/scipy,gdooper/scipy,WarrenWeckesser/scipy,aman-iitj/scipy,FRidh/scipy,aeklant/scipy,arokem/scipy,njwilson23/scipy,aeklant/scipy,Dapid/scipy,behzadnouri/scipy,fredrikw/scipy,juliantaylor/scipy,juliantaylor/scipy,Shaswat27/scipy,scipy/scipy,mhogg/scipy,gfyoung/scipy,richardotis/scipy,aman-iitj/scipy,tylerjereddy/scipy,Srisai85/scipy,jakevdp/scipy,surhudm/scipy,vberaudi/scipy,Stefan-Endres/scipy,ndchorley/scipy,niknow/scipy,aeklant/scipy,Gillu13/scipy,FRidh/scipy,vhaasteren/scipy,lhilt/scipy,pizzathief/scipy,matthew-brett/scipy,ChanderG/scipy,rgommers/scipy,dominicelse/scipy,felipebetancur/scipy,jakevdp/scipy,gertingold/scipy,surhudm/scipy,e-q/scipy,endolith/scipy,andyfaff/scipy,kalvdans/scipy,vigna/scipy,ilayn/scipy,haudren/scipy,haudren/scipy,jonycgn/scipy,raoulbq/scipy,nonhermitian/scipy,rmcgibbo/scipy,Stefan-Endres/scipy,mgaitan/scipy,person142/scipy,Srisai85/scipy,josephcslater/scipy,witcxc/scipy,ogrisel/scipy,raoulbq/scipy,mgaitan/scipy,hainm/scipy,mhogg/scipy,trankmichael/scipy,gertingold/scipy,jonycgn/scipy,scipy/scipy,andyfaff/scipy,kleskjr/scipy,jakevdp/scipy,witcxc/scipy,njwilson23/scipy,fernand/scipy,ilayn/scipy,mortada/scipy,vberaudi/scipy,jsilter/scipy,ilayn/scipy,pnedunuri/scipy,befelix/scipy,jakevdp/scipy,anntzer/scipy,sonnyhu/scipy,matthewalbani/scipy,sargas/scipy,perimosocordiae/scipy,behzadnouri/scipy,Kamp9/scipy,person142/scipy,Dapid/scipy,matthewalbani/scipy,apbard/scipy,Kamp9/scipy,kalvdans/scipy,gdooper/scipy,anntzer/scipy,sauliusl/scipy,woodscn/scipy,ChanderG/scipy,juliantaylor/scipy,giorgiop/scipy,vanpact/scipy,endolith/scipy,Kamp9/scipy,aarchiba/scipy,jamestwebber/scipy,behzadnouri/scipy,bkendzior/scipy,Gillu13/scipy,jjhelmus/scipy,minhlongdo/scipy,juliantaylor/scipy,dch312/scipy,newemailjdm/scipy,giorgiop/scipy,teoliphant/scipy,pschella/scipy,vanpact/scipy,nonhermitian/scipy,ortylp/scipy,teoliphant/scipy,andim/scipy,behzadnouri/scipy,maniteja123/scipy,gef756/scipy,pyramania/scipy,zerothi/scipy,piyush0609/scipy,gfyoung/scipy,gfyoung/scipy,jor-/scipy