minor #16523 Reorder upgrade doc (umpirsky)
minor #16523 Reorder upgrade doc (umpirsky)

This PR was submitted for the master branch but it was merged into the 2.8 branch instead (closes #16523).

Discussion
----------

Reorder upgrade doc

Just group "The option "`a`" was renamed to "`b`"." together.

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

Commits
-------

2c65507 Reorder upgrade steps

dbu/symfony,apetitpa/symfony,yceruto/symfony,sstok/symfony,Ener-Getick/symfony,hacfi/symfony,thunderer/symfony,kbond/symfony,dosten/symfony,jderusse/symfony,ogizanagi/symfony,1ed/symfony,andrerom/symfony,sgehrig/symfony,Taluu/symfony,zorn-v/symfony,Koc/symfony,dzuelke/symfony,adamelso/symfony,jvasseur/symfony,lemoinem/symfony,Nyholm/symfony,jakzal/symfony,peterrehm/symfony,havvg/symfony,jderusse/symfony,lyrixx/symfony,beoboo/symfony,Amo/symfony,havvg/symfony,ajgarlag/symfony,HeahDude/symfony,alekitto/symfony,lemoinem/symfony,WhiteEagle88/symfony,lemoinem/symfony,georaldc/symfony,stof/symfony,weaverryan/symfony,joelwurtz/symfony,mickaelandrieu/symfony,SaschaDens/symfony,michaelperrin/symfony,Ocramius/symfony,DavidGarciaCat/symfony,sgehrig/symfony,Nyholm/symfony,gonzalovilaseca/symfony,ewgRa/symfony,tucksaun/symfony,dosten/symfony,gnat42/symfony,ewgRa/symfony,GuilhemN/symfony,beoboo/symfony,jameshalsall/symfony,GuilhemN/symfony,ewgRa/symfony,dkarvounaris/symfony,webmozart/symfony,c960657/symfony,Slamdunk/symfony,alebo/symfony,hacfi/symfony,Ocramius/symfony,shieldo/symfony,backbone87/symfony,k0pernikus/symfony,bendavies/symfony,SofHad/symfony,mvhirsch/symfony,bendavies/symfony,nicolas-grekas/symfony,ragboyjr/symfony,mpdude/symfony,WhiteEagle88/symfony,natechicago/symfony,danionut90/symfony,aeoris/symfony,tPl0ch/symfony,hason/symfony,dosten/symfony,fabpot/symfony,Padam87/symfony,realityking/symfony,nicolas-grekas/symfony,jderusse/symfony,mickaelandrieu/symfony,WouterJ/symfony,damienalexandre/symfony,jeremyFreeAgent/symfony,GuilhemN/symfony,maidmaid/symfony,danionut90/symfony,iltar/symfony,Einenlum/symfony,unexge/symfony,mickaelandrieu/symfony,aeoris/symfony,superdav42/symfony,klandaika/symfony,HeahDude/symfony,danionut90/symfony,digitalkaoz/symfony,MisatoTremor/symfony,csarrazi/symfony,andrerom/symfony,MisatoTremor/symfony,nasimnabavi/symfony,k0pernikus/symfony,EVODelavega/symfony,geoffrey-brier/symfony,mvhirsch/symfony,mnapoli/symfony,sroze/symfony,dawehner/symfony,andreia/symfony,dmaicher/symfony,Simperfit/symfony,superdav42/symfony,dunglas/symfony,sroze/symfony,digitalkaoz/symfony,kbond/symfony,Triiistan/symfony,1ed/symfony,moycarretero/behat,Taluu/symfony,d-ph/symfony,pix-art/symfony,mickaelandrieu/symfony,Ocramius/symfony,mweimerskirch/symfony,georaldc/symfony,peterrehm/symfony,arjenm/symfony,sstok/symfony,MatTheCat/symfony,e-moe/symfony,Engerim/symfony,xabbuh/symfony,pamil/symfony,GuilhemN/symfony,ewgRa/symfony,okdana/symfony,aeoris/symfony,symfony/symfony,localheinz/symfony,Engerim/symfony,d-ph/symfony,symfony/symfony,weaverryan/symfony,SaschaDens/symfony,zcodes/symfony,tucksaun/symfony,andrerom/symfony,bburnichon/symfony,okdana/symfony,oleg-andreyev/symfony,joelwurtz/symfony,jzawadzki/symfony,d-ph/symfony,weaverryan/symfony,HeahDude/symfony,pix-art/symfony,backbone87/symfony,Ener-Getick/symfony,romaricdrigon/symfony,vincentaubert/symfony,ajgarlag/symfony,kbond/symfony,jeremyFreeAgent/symfony,OndraM/symfony,hhamon/symfony,tPl0ch/symfony,Aliance/symfony,pamil/symfony,adamelso/symfony,Aliance/symfony,dzuelke/symfony,romaricdrigon/symfony,jeremyFreeAgent/symfony,zerkms/symfony,EVODelavega/symfony,zerkms/symfony,chalasr/symfony,Deamon/symfony,pierredup/symfony,mpdude/symfony,dzuelke/symfony,jameshalsall/symfony,havvg/symfony,csarrazi/symfony,romaricdrigon/symfony,mnapoli/symfony,jean-gui/symfony,michaelperrin/symfony,jpauli/symfony,Strate/symfony,ajgarlag/symfony,mnapoli/symfony,alebo/symfony,ro0NL/symfony,joelwurtz/symfony,klandaika/symfony,lepiaf/symfony,Slamdunk/symfony,docteurklein/symfony,zcodes/symfony,Koc/symfony,jjanvier/symfony,OskarStark/symfony,localheinz/symfony,tucksaun/symfony,jvasseur/symfony,teohhanhui/symfony,dmaicher/symfony,c960657/symfony,pyrech/symfony,jeremyFreeAgent/symfony,iltar/symfony,superdav42/symfony,ro0NL/symfony,sroze/symfony,havvg/symfony,Aliance/symfony,derrabus/symfony,webmozart/symfony,phramz/symfony,Amo/symfony,OndraM/symfony,superdav42/symfony,xabbuh/symfony,chrisguitarguy/symfony,Deamon/symfony,beoboo/symfony,OndraM/symfony,codeclimate-testing/symfony,jakzal/symfony,mweimerskirch/symfony,Tobion/symfony,believer-ufa/symfony,neemzy/symfony,tgalopin/symfony,ogizanagi/symfony,e-moe/symfony,MisatoTremor/symfony,romainneutron/symfony,romainneutron/symfony,Taluu/symfony,natechicago/symfony,Ener-Getick/symfony,gencer/symfony,joelwurtz/symfony,stof/symfony,jpauli/symfony,dawehner/symfony,michaelperrin/symfony,derrabus/symfony,chrisguitarguy/symfony,believer-ufa/symfony,phramz/symfony,apetitpa/symfony,moycarretero/behat,zcodes/symfony,unexge/symfony,havvg/symfony,natechicago/symfony,1ed/symfony,SofHad/symfony,Ocramius/symfony,jpauli/symfony,oleg-andreyev/symfony,curry684/symfony,apfelbox/symfony,klandaika/symfony,smatyas/symfony,mvhirsch/symfony,realityking/symfony,docteurklein/symfony,Triiistan/symfony,jeremyFreeAgent/symfony,smatyas/symfony,WouterJ/symfony,MatTheCat/symfony,maidmaid/symfony,yceruto/symfony,damienalexandre/symfony,Tobion/symfony,gnat42/symfony,dawehner/symfony,Amo/symfony,maidmaid/symfony,OndraM/symfony,iltar/symfony,garak/symfony,andreia/symfony,jakzal/symfony,believer-ufa/symfony,gonzalovilaseca/symfony,fabpot/symfony,damienalexandre/symfony,voronkovich/symfony,lepiaf/symfony,beoboo/symfony,damienalexandre/symfony,jakzal/symfony,mweimerskirch/symfony,klandaika/symfony,SaschaDens/symfony,alebo/symfony,derrabus/symfony,k0pernikus/symfony,mihai-stancu/symfony,sstok/symfony,gnat42/symfony,alekitto/symfony,paradajozsef/symfony,dzuelke/symfony,Nyholm/symfony,sgehrig/symfony,mickaelandrieu/symfony,ewgRa/symfony,e-moe/symfony,codeclimate-testing/symfony,hason/symfony,pix-art/symfony,apetitpa/symfony,EVODelavega/symfony,dkarvounaris/symfony,michaelperrin/symfony,geoffrey-brier/symfony,danionut90/symfony,zorn-v/symfony,xabbuh/symfony,georaldc/symfony,pix-art/symfony,pierredup/symfony,mihai-stancu/symfony,MatTheCat/symfony,smatyas/symfony,lstrojny/symfony,gencer/symfony,mweimerskirch/symfony,apfelbox/symfony,dunglas/symfony,jjanvier/symfony,arjenm/symfony,Ocramius/symfony,tgalopin/symfony,MisatoTremor/symfony,lyrixx/symfony,thunderer/symfony,phramz/symfony,moycarretero/behat,alekitto/symfony,dbu/symfony,jderusse/symfony,ragboyjr/symfony,SaschaDens/symfony,dmaicher/symfony,lyrixx/symfony,Triiistan/symfony,garak/symfony,frankdejonge/symfony,nasimnabavi/symfony,moycarretero/behat,dzuelke/symfony,Slamdunk/symfony,stof/symfony,gencer/symfony,dunglas/symfony,Pierstoval/symfony,hhamon/symfony,jpauli/symfony,patrick-mcdougle/symfony,jameshalsall/symfony,c960657/symfony,neemzy/symfony,calm10/Symfony2,MatTheCat/symfony,hhamon/symfony,patrick-mcdougle/symfony,josephdpurcell/symfony,dbu/symfony,mnapoli/symfony,calm10/Symfony2,MisatoTremor/symfony,jzawadzki/symfony,jpauli/symfony,jean-gui/symfony,fabpot/symfony,EVODelavega/symfony,dosten/symfony,vincentaubert/symfony,pierredup/symfony,jameshalsall/symfony,romainneutron/symfony,dbu/symfony,pix-art/symfony,romaricdrigon/symfony,k0pernikus/symfony,natechicago/symfony,Padam87/symfony,dawehner/symfony,Pierstoval/symfony,ajgarlag/symfony,symfony/symfony,arjenm/symfony,tgalopin/symfony,bendavies/symfony,lemoinem/symfony,localheinz/symfony,pamil/symfony,patrick-mcdougle/symfony,unexge/symfony,Simperfit/symfony,lemoinem/symfony,Simperfit/symfony,localheinz/symfony,gonzalovilaseca/symfony,jvasseur/symfony,OndraM/symfony,voronkovich/symfony,SofHad/symfony,nicolas-grekas/symfony,ewgRa/symfony,Deamon/symfony,Slamdunk/symfony,shieldo/symfony,DavidGarciaCat/symfony,mweimerskirch/symfony,yceruto/symfony,smatyas/symfony,sgehrig/symfony,frankdejonge/symfony,digitalkaoz/symfony,oleg-andreyev/symfony,dawehner/symfony,vincentaubert/symfony,chrisguitarguy/symfony,codeclimate-testing/symfony,curry684/symfony,codeclimate-testing/symfony,Ener-Getick/symfony,tPl0ch/symfony,Deamon/symfony,paradajozsef/symfony,ro0NL/symfony,deguif/symfony,thunderer/symfony,believer-ufa/symfony,Simperfit/symfony,Pierstoval/symfony,e-moe/symfony,weaverryan/symfony,smatyas/symfony,bburnichon/symfony,symfony/symfony,unexge/symfony,natechicago/symfony,OskarStark/symfony,paradajozsef/symfony,pierredup/symfony,mvhirsch/symfony,csarrazi/symfony,Koc/symfony,deguif/symfony,tucksaun/symfony,andreia/symfony,EVODelavega/symfony,lepiaf/symfony,tgalopin/symfony,Pierstoval/symfony,georaldc/symfony,Simperfit/symfony,pyrech/symfony,hason/symfony,nasimnabavi/symfony,mpdude/symfony,iltar/symfony,apetitpa/symfony,vincentaubert/symfony,docteurklein/symfony,believer-ufa/symfony,jzawadzki/symfony,Padam87/symfony,chrisguitarguy/symfony,garak/symfony,DavidGarciaCat/symfony,gimler/symfony,ragboyjr/symfony,Deamon/symfony,nicolas-grekas/symfony,bendavies/symfony,jpauli/symfony,pamil/symfony,Ener-Getick/symfony,MisatoTremor/symfony,gimler/symfony,voronkovich/symfony,zorn-v/symfony,OskarStark/symfony,apfelbox/symfony,romainneutron/symfony,lyrixx/symfony,jjanvier/symfony,Ener-Getick/symfony,Strate/symfony,sroze/symfony,Padam87/symfony,jvasseur/symfony,zerkms/symfony,1ed/symfony,lstrojny/symfony,xabbuh/symfony,oleg-andreyev/symfony,peterrehm/symfony,frankdejonge/symfony,adamelso/symfony,apfelbox/symfony,believer-ufa/symfony,Amo/symfony,mihai-stancu/symfony,calm10/Symfony2,alekitto/symfony,shieldo/symfony,patrick-mcdougle/symfony,teohhanhui/symfony,mvhirsch/symfony,peterrehm/symfony,jjanvier/symfony,alebo/symfony,fabpot/symfony,neemzy/symfony,dkarvounaris/symfony,thunderer/symfony,curry684/symfony,gonzalovilaseca/symfony,ro0NL/symfony,josephdpurcell/symfony,realityking/symfony,natechicago/symfony,Ocramius/symfony,kbond/symfony,tPl0ch/symfony,geoffrey-brier/symfony,nasimnabavi/symfony,calm10/Symfony2,webmozart/symfony,dmaicher/symfony,pyrech/symfony,deguif/symfony,jean-gui/symfony,garak/symfony,mihai-stancu/symfony,teohhanhui/symfony,stof/symfony,webmozart/symfony,moycarretero/behat,romainneutron/symfony,jjanvier/symfony,SofHad/symfony,bburnichon/symfony,d-ph/symfony,Triiistan/symfony,docteurklein/symfony,realityking/symfony,jean-gui/symfony,chalasr/symfony,josephdpurcell/symfony,georaldc/symfony,adamelso/symfony,superdav42/symfony,patrick-mcdougle/symfony,Nyholm/symfony,Engerim/symfony,SofHad/symfony,unexge/symfony,lstrojny/symfony,alebo/symfony,peterrehm/symfony,zerkms/symfony,Triiistan/symfony,zcodes/symfony,dosten/symfony,Strate/symfony,realityking/symfony,Koc/symfony,OskarStark/symfony,HeahDude/symfony,bburnichon/symfony,dkarvounaris/symfony,sstok/symfony,Einenlum/symfony,maidmaid/symfony,mihai-stancu/symfony,beoboo/symfony,geoffrey-brier/symfony,derrabus/symfony,ogizanagi/symfony,thunderer/symfony,sstok/symfony,mnapoli/symfony,curry684/symfony,deguif/symfony,Einenlum/symfony,WouterJ/symfony,ogizanagi/symfony,digitalkaoz/symfony,ragboyjr/symfony,gnat42/symfony,okdana/symfony,Tobion/symfony,andrerom/symfony,chalasr/symfony,frankdejonge/symfony,c960657/symfony,k0pernikus/symfony,Taluu/symfony,calm10/Symfony2,Tobion/symfony,jameshalsall/symfony,gimler/symfony,digitalkaoz/symfony,danionut90/symfony,WhiteEagle88/symfony,klandaika/symfony,chalasr/symfony,webmozart/symfony,chrisguitarguy/symfony,shieldo/symfony,bburnichon/symfony,geoffrey-brier/symfony,danionut90/symfony,arjenm/symfony,GuilhemN/symfony,pix-art/symfony,georaldc/symfony,adamelso/symfony,backbone87/symfony,mpdude/symfony,hacfi/symfony,dkarvounaris/symfony,paradajozsef/symfony,gimler/symfony,hhamon/symfony,yceruto/symfony,apfelbox/symfony,Padam87/symfony,phramz/symfony,pyrech/symfony,teohhanhui/symfony,Einenlum/symfony,dbu/symfony,voronkovich/symfony,geoffrey-brier/symfony,superdav42/symfony,andreia/symfony,realityking/symfony,zorn-v/symfony,SaschaDens/symfony,tPl0ch/symfony,Amo/symfony,docteurklein/symfony