minor #35297 Improve upgrading instructions for deprecated router options (flack)
minor #35297 Improve upgrading instructions for deprecated router options (flack)

This PR was merged into the 4.4 branch.

Discussion
----------

Improve upgrading instructions for deprecated router options

See https://github.com/symfony/symfony/pull/30249#issuecomment-572976926

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | #30249
| License       | MIT
| Doc PR        |

Commits
-------

2cc708341e Improve upgrading instructions for deprecated router options

hhamon/symfony,localheinz/symfony,OskarStark/symfony,lstrojny/symfony,garak/symfony,dmaicher/symfony,oleg-andreyev/symfony,pyrech/symfony,voronkovich/symfony,damienalexandre/symfony,zorn-v/symfony,nicolas-grekas/symfony,mnapoli/symfony,tgalopin/symfony,Slamdunk/symfony,bendavies/symfony,kbond/symfony,jvasseur/symfony,voronkovich/symfony,fabpot/symfony,derrabus/symfony,Koc/symfony,Koc/symfony,bendavies/symfony,tgalopin/symfony,symfony/symfony,Nyholm/symfony,nicolas-grekas/symfony,d-ph/symfony,ro0NL/symfony,Tobion/symfony,d-ph/symfony,Deamon/symfony,lyrixx/symfony,MatTheCat/symfony,jakzal/symfony,smatyas/symfony,zorn-v/symfony,Slamdunk/symfony,mnapoli/symfony,phramz/symfony,gonzalovilaseca/symfony,Taluu/symfony,curry684/symfony,chalasr/symfony,voronkovich/symfony,garak/symfony,HeahDude/symfony,damienalexandre/symfony,chalasr/symfony,mpdude/symfony,tucksaun/symfony,Tobion/symfony,curry684/symfony,stof/symfony,ogizanagi/symfony,ragboyjr/symfony,tgalopin/symfony,Taluu/symfony,stof/symfony,jderusse/symfony,kbond/symfony,pierredup/symfony,hhamon/symfony,mpdude/symfony,stof/symfony,zerkms/symfony,Tobion/symfony,paradajozsef/symfony,alekitto/symfony,xabbuh/symfony,HeahDude/symfony,ro0NL/symfony,alekitto/symfony,tgalopin/symfony,damienalexandre/symfony,mweimerskirch/symfony,Deamon/symfony,jderusse/symfony,mweimerskirch/symfony,lstrojny/symfony,sgehrig/symfony,smatyas/symfony,garak/symfony,derrabus/symfony,pierredup/symfony,Nyholm/symfony,voronkovich/symfony,OskarStark/symfony,stof/symfony,tucksaun/symfony,tucksaun/symfony,symfony/symfony,xabbuh/symfony,jderusse/symfony,oleg-andreyev/symfony,mnapoli/symfony,Slamdunk/symfony,zorn-v/symfony,kbond/symfony,pyrech/symfony,jakzal/symfony,fabpot/symfony,derrabus/symfony,Nyholm/symfony,dmaicher/symfony,derrabus/symfony,phramz/symfony,lyrixx/symfony,damienalexandre/symfony,localheinz/symfony,curry684/symfony,oleg-andreyev/symfony,d-ph/symfony,smatyas/symfony,1ed/symfony,Simperfit/symfony,jakzal/symfony,nicolas-grekas/symfony,smatyas/symfony,sgehrig/symfony,ogizanagi/symfony,tucksaun/symfony,symfony/symfony,Simperfit/symfony,mweimerskirch/symfony,sgehrig/symfony,nicolas-grekas/symfony,1ed/symfony,zerkms/symfony,symfony/symfony,fabpot/symfony,ro0NL/symfony,pierredup/symfony,ro0NL/symfony,localheinz/symfony,Simperfit/symfony,mpdude/symfony,Taluu/symfony,gonzalovilaseca/symfony,MatTheCat/symfony,OskarStark/symfony,sgehrig/symfony,alekitto/symfony,jvasseur/symfony,fabpot/symfony,ogizanagi/symfony,Tobion/symfony,OskarStark/symfony,Simperfit/symfony,bendavies/symfony,hhamon/symfony,oleg-andreyev/symfony,phramz/symfony,Koc/symfony,ragboyjr/symfony,dmaicher/symfony,chalasr/symfony,Deamon/symfony,1ed/symfony,mweimerskirch/symfony,lyrixx/symfony,smatyas/symfony,jakzal/symfony,Slamdunk/symfony,phramz/symfony,garak/symfony,jvasseur/symfony,ogizanagi/symfony,Deamon/symfony,lyrixx/symfony,d-ph/symfony,paradajozsef/symfony,mweimerskirch/symfony,paradajozsef/symfony,pyrech/symfony,Koc/symfony,gonzalovilaseca/symfony,hhamon/symfony,xabbuh/symfony,alekitto/symfony,pyrech/symfony,zerkms/symfony,MatTheCat/symfony,bendavies/symfony,mnapoli/symfony,Simperfit/symfony,localheinz/symfony,ragboyjr/symfony,Deamon/symfony,chalasr/symfony,mpdude/symfony,jvasseur/symfony,Nyholm/symfony,MatTheCat/symfony,ragboyjr/symfony,curry684/symfony,gonzalovilaseca/symfony,HeahDude/symfony,mnapoli/symfony,Taluu/symfony,zorn-v/symfony,1ed/symfony,pierredup/symfony,jderusse/symfony,xabbuh/symfony,lstrojny/symfony,dmaicher/symfony,HeahDude/symfony,zerkms/symfony,paradajozsef/symfony,kbond/symfony