DOC: Update rv_continuous.fit doc.
DOC: Update rv_continuous.fit doc.

Closes gh-6727.

kalvdans/scipy,vigna/scipy,andyfaff/scipy,grlee77/scipy,pizzathief/scipy,Stefan-Endres/scipy,lhilt/scipy,gfyoung/scipy,endolith/scipy,WarrenWeckesser/scipy,aarchiba/scipy,jakevdp/scipy,pizzathief/scipy,bkendzior/scipy,befelix/scipy,WarrenWeckesser/scipy,scipy/scipy,zerothi/scipy,jjhelmus/scipy,aarchiba/scipy,jor-/scipy,rgommers/scipy,pbrod/scipy,dominicelse/scipy,kalvdans/scipy,befelix/scipy,matthew-brett/scipy,anntzer/scipy,aeklant/scipy,Eric89GXL/scipy,lhilt/scipy,e-q/scipy,Eric89GXL/scipy,arokem/scipy,josephcslater/scipy,jor-/scipy,pizzathief/scipy,apbard/scipy,bkendzior/scipy,aeklant/scipy,pyramania/scipy,bkendzior/scipy,josephcslater/scipy,nmayorov/scipy,WarrenWeckesser/scipy,Eric89GXL/scipy,josephcslater/scipy,pyramania/scipy,bkendzior/scipy,mdhaber/scipy,pizzathief/scipy,rgommers/scipy,arokem/scipy,anntzer/scipy,scipy/scipy,endolith/scipy,scipy/scipy,jamestwebber/scipy,lhilt/scipy,josephcslater/scipy,grlee77/scipy,grlee77/scipy,kalvdans/scipy,mdhaber/scipy,josephcslater/scipy,pbrod/scipy,zerothi/scipy,jjhelmus/scipy,matthew-brett/scipy,rgommers/scipy,jjhelmus/scipy,gfyoung/scipy,tylerjereddy/scipy,andyfaff/scipy,dominicelse/scipy,pizzathief/scipy,jamestwebber/scipy,apbard/scipy,kalvdans/scipy,gertingold/scipy,perimosocordiae/scipy,gertingold/scipy,person142/scipy,e-q/scipy,jor-/scipy,apbard/scipy,jamestwebber/scipy,befelix/scipy,pyramania/scipy,andyfaff/scipy,person142/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,matthew-brett/scipy,andyfaff/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,nmayorov/scipy,Eric89GXL/scipy,pbrod/scipy,apbard/scipy,jakevdp/scipy,nmayorov/scipy,mdhaber/scipy,aarchiba/scipy,Eric89GXL/scipy,dominicelse/scipy,endolith/scipy,pschella/scipy,aeklant/scipy,vigna/scipy,anntzer/scipy,dominicelse/scipy,andyfaff/scipy,pschella/scipy,gertingold/scipy,person142/scipy,Stefan-Endres/scipy,jamestwebber/scipy,gfyoung/scipy,kalvdans/scipy,scipy/scipy,gertingold/scipy,perimosocordiae/scipy,befelix/scipy,rgommers/scipy,anntzer/scipy,pyramania/scipy,perimosocordiae/scipy,perimosocordiae/scipy,lhilt/scipy,rgommers/scipy,mdhaber/scipy,vigna/scipy,e-q/scipy,arokem/scipy,bkendzior/scipy,lhilt/scipy,aeklant/scipy,Stefan-Endres/scipy,anntzer/scipy,befelix/scipy,andyfaff/scipy,endolith/scipy,WarrenWeckesser/scipy,jamestwebber/scipy,WarrenWeckesser/scipy,pbrod/scipy,jakevdp/scipy,nmayorov/scipy,ilayn/scipy,arokem/scipy,Eric89GXL/scipy,mdhaber/scipy,ilayn/scipy,person142/scipy,ilayn/scipy,zerothi/scipy,tylerjereddy/scipy,zerothi/scipy,jor-/scipy,dominicelse/scipy,apbard/scipy,pbrod/scipy,pschella/scipy,arokem/scipy,jakevdp/scipy,pyramania/scipy,pschella/scipy,person142/scipy,aeklant/scipy,nmayorov/scipy,endolith/scipy,WarrenWeckesser/scipy,anntzer/scipy,perimosocordiae/scipy,matthew-brett/scipy,vigna/scipy,jjhelmus/scipy,ilayn/scipy,grlee77/scipy,scipy/scipy,endolith/scipy,mdhaber/scipy,ilayn/scipy,e-q/scipy,zerothi/scipy,pbrod/scipy,jor-/scipy,vigna/scipy,pschella/scipy,ilayn/scipy,zerothi/scipy,gertingold/scipy,aarchiba/scipy,tylerjereddy/scipy,grlee77/scipy,scipy/scipy,jjhelmus/scipy,jakevdp/scipy,matthew-brett/scipy,gfyoung/scipy,tylerjereddy/scipy,aarchiba/scipy,gfyoung/scipy,e-q/scipy