changed version to 2.3 in the README
changed version to 2.3 in the README

bocharsky-bw/symfony-standard,ewgRa/symfony-standard,bshaffer/symfony-standard,shamcode/symfony-testing,propelorm/symfony-propel-edition,bshaffer/symfony-standard,continuousphp/symfony-skeleton,black-project/black-standard,kmelia/fresh-symfony,gencer/symfony-standard,AlexeyKupershtokh/symfony-standard,kmelia/fresh-symfony,stof/symfony-standard,RuntyCybin/symfony-standard,havvg/symfony-standard-propel,havvg/symfony-propel-edition,apnet/symfony-standard-edition,vincentchalamon/phpunit-bridge,Cartesia/01,propelorm/symfony-propel-edition,fabpot/symfony-standard,rajkamalganeshvivid/symfony-standard,HasClass0/standard-edition,glavweb/symfony-standard,dunglas/symfony-standard,simonjcarr/symfony_rest,wachterjohannes/sulu-standard,continuousphp/symfony-skeleton,stof/symfony-standard,formapro-forks/api-basic,fahadonline/sulu,fahadonline/sulu,fduch/symfony-standard-workflow,symfony-cmf/standard-edition,javiereguiluz/symfony-standard,symfony/symfony-standard,phospr/symfony-starter,Clastic/StandardEdition,NoUseFreak/StandardEdition,HumanBooster/Symfony,AlexeyKupershtokh/symfony-standard,Rvanlaak/symfony-standard,aerrasti/iemedebe,xabbuh/symfony-standard,havvg/symfony-propel-edition,shadowtje1990/symfony_todo_api,javiereguiluz/symfony-standard,GulDmitry/music-diff,egeloen/symfony-standard,trsteel88/symfony-standard,liip-forks/symfony-standard,aprezcuba24/symfony-standard,tristanbes/symfony-standard,mkrauser/symfony-dump-demo,platformsh/platformsh-example-symfony,dkarvounaris/symfony-standard,Cartesia/01,SymfonyId/api-platform,fahadonline/sulu,lyrixx/symfony-standard,pjcdawkins/tmp-symfony-demo,dkarvounaris/symfony-standard,mayeco/symfony-standard-pagodabox,kosintwong/symfony_test,symfony/symfony-standard,kmelia/fresh-symfony,ucay/Skeleton,fduch/symfony-standard-workflow,spolischook/standard-edition,mweimerskirch/symfony-standard,bamarni/symfony-docker,uttam-vi/pardawala,yhoiseth/notelite.net,orodsem/trout,sulu-io/sulu-standard,platformsh/platformsh-example-symfony,GulDmitry/music-diff,ewgRa/symfony-standard,formapro-forks/api-basic,vincentaubert/symfony-standard,ctrl-f5/symfony-standard,twisted-socket/stage-plots,pjcdawkins/tmp-symfony-demo,Clastic/StandardEdition,twisted-socket/stage-plots,umpirsky/symfony-standard,mweimerskirch/symfony-standard,Tobion/symfony-standard,yhoiseth/notelite.net,WolfMicrosystems/symfony-wms,continuousphp/symfony-skeleton,zanderbaldwin/symfony-layers,GulDmitry/music-diff,jbdelhommeau/symfony-standard,apnet/symfony-standard-edition,taylankasap/symfony-standard,irro/MastoAlliance,continuousphp/symfony-skeleton,ctrl-f5/symfony-standard,papaavola/symfony-standard,ucay/Skeleton,sulu-io/sulu-standard,OskarStark/symfony-standard,Spea/symfony-standard,RuntyCybin/symfony-standard,vincentchalamon/phpunit-bridge,phospr/symfony-starter,trsteel88/symfony-standard,debruyne0/symfony,shamcode/symfony-testing,ovelasquez/ussi,proteichik/testApp,OskarStark/symfony-standard,bamarni/symfony-docker,NoUseFreak/StandardEdition,umpirsky/symfony-standard,WolfMicrosystems/symfony-wms,apnet/symfony-standard-edition,ovelasquez/ussi,symfony-cmf/standard-edition,havvg/symfony-standard-propel,skafandri/blog,unewochialat/symfony-standard,fahadonline/sulu,aerrasti/iemedebe,b00giZm/symfony-boilerplate-app,simonjcarr/symfony_rest,proteichik/testApp,Spea/symfony-standard,yelmontaser/symfony-standard,Soullivaneuh/symfony-standard,unewochialat/symfony-standard,debruyne0/symfony,rajkamalganeshvivid/symfony-standard,egeloen/symfony-standard,yelmontaser/symfony-standard,by-examples/symfony-standard,glavweb/symfony-standard,gencer/symfony-standard,Soullivaneuh/symfony-standard,sulu-io/sulu-standard,shadowtje1990/symfony_todo_api,orodsem/trout,xiaobudongzhang/symfony-standard,wachterjohannes/sulu-standard,b00giZm/symfony-boilerplate-app,ucay/Skeleton,lyrixx/symfony-standard,UxorialRook/symfony-standard,uttam-vi/pardawala,fabpot/symfony-standard,SymfonyId/Skeleton,skafandri/blog,vincentaubert/symfony-standard,Clastic/StandardEdition,ovelasquez/ussi,UxorialRook/symfony-standard,bocharsky-bw/symfony-standard,GulDmitry/music-diff,IgorTimoshenko/symfony-standard-requirejs,NoUseFreak/StandardEdition,the-software-factory/superhero-api,spolischook/standard-edition,xiaobudongzhang/symfony-standard,Ocramius/symfony-standard,irro/MastoAlliance,tristanbes/symfony-standard,Baachi/symfony-standard,black-project/black-standard,jbdelhommeau/symfony-standard,the-software-factory/superhero-api,zanderbaldwin/symfony-layers,IgorTimoshenko/symfony-standard-requirejs,papaavola/symfony-standard,dunglas/symfony-standard,Cartesia/01,uttam-vi/pardawala,Tobion/symfony-standard,jakzal/symfony-standard,taylankasap/symfony-standard,HasClass0/standard-edition,theodo/theodo-kata,orodsem/trout,liip-forks/symfony-standard,wachterjohannes/sulu-standard,b00giZm/symfony-boilerplate-app,SymfonyId/Skeleton,Baachi/symfony-standard,0mars/symfony-standard-issue-13291,theodo/theodo-kata,jakzal/symfony-standard