Update how-to-implement-routing.md
Update how-to-implement-routing.md

Deprecate the current descriptions, and sketch out how to use universal-router
AntonyKwok/react-starter-kit,edgarallanglez/foxacademia_frontend,DaveyEdwards/myiworlds,ben-miller/adddr.io,pitLancer/pbdorb,HildoBijl/DondersHackathonTR,ACPK/react-starter-kit,kaynenh/ReactBudget,takahashik/todo-app,arkeros/react-native-starter-kit,vanbujm/react-css-animation-practice,buildbreakdo/react-starter-kit,ADourgarian/Syscoin-Payroll,zsu13579/pinterest-apollo,nextinnovation-corp/gacha,Jose4gg/GSW-P2,aos2006/tesDeploy,zmj1316/InfomationVisualizationCourseWork,siddhant3s/crunchgraph,kevinchau321/TReactr,jackygrahamez/react-starter-kit,nambawan/g-old,jwhchambers/react-starter-kit,jhlav/mpn-web-app,onelink-translations/react-localization,kinshuk-jain/TB-Dfront,tlin108/chaf,arkeros/react-native-starter-kit,ynu/ecard-wxe,takahashik/todo-app,quyetvv/react-starter-kit,jackinf/skynda.me,nicolascine/site,KantanGroup/zuzu-sites,globalART19/OrderedOptions,arkeros/react-native-starter-kit,luznlun/kkRoom,egut/react-docker-demo,wanchopen/vida,quasicrial/quasicrial,jaruesink/ruesinkdds,MxMcG/tourlookup-react,sjackson212/A6DotCom,0xcdc/rfb-client-app,ACPK/react-starter-kit,kuao775/mandragora,kutou/react-starter-kit,ynu/res-track-wxe,0xcdc/rfb-client-app,aos2006/tesDeploy,tinwaisi/take-home,vanbujm/react-css-animation-practice,Nikhil22/trooper,ziedAb/PVMourakiboun,Frenzzy/react-starter-kit,TodoWishlist/TodoWishlist,RomanovRoman/react-starter-kit,BenRichter/app2,langpavel/react-starter-kit,zsu13579/whatsgoinontonight,uptive/react-starter-kit,brian-kilpatrick/react-starter-kit,0xcdc/rfb-client-app,Jose4gg/GSW-P2,labzero/lunch,murphysierra/VinnyStoryPage,i3ringit/mdelc,SOCLE15/carpoule,louisukiri/react-starter-kit,dabrowski-adam/react-isomorphic,jtiscione/redux-chess,cineindustria/site,Frenzzy/react-starter-kit,nextinnovation-corp/gacha,bigwaterconsulting/to_dash_live,Nexapp/react-starter-kit,samdenicola/react-starter-kit,Skoli-Code/DerangeonsLaChambre,nambawan/g-old,fkn/ndo,koistya/react-starter-kit,rameshrr/dicomviewer,fkn/ndo,poeschko/ask-refugeescode,samkguerrero/samkguerrero_react,binyuace/vote