Fixed a typo
Fixed a typo

Should be rails 4
Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,mintybit/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,Altoros/ruby-buildpack,heroku/heroku-buildpack-ruby,pietrop/heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,bskyb-commerce/help-heroku-buildpack,jumptvs/BP_Ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,0x00evil/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,sky-uk/help-heroku-buildpack,d-reinhold/cf-buildpack-ruby,cloudn/buildpack-ruby,leonardykris/mos-ruby-buildpack,Scalingo/ruby-buildpack,hpcloud/ruby-buildpack,electricobjects/heroku-buildpack-ruby,cmaggard/heroku-buildpack-turbo-sprockets,DyegoCosta/heroku-buildpack-ruby,0x00evil/heroku-buildpack-ruby,takii/db2rubybuildpack,moneyadviceservice/heroku-buildpack-ruby-bowndler,jonseaberg/heroku-buildpack-turbo-sprockets,brightbytes/heroku-buildpack-ruby-without-assets-precompile,instacart/heroku-buildpack-ruby,dtao/deft-buildpack-ruby,samfrench/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,jumptvs/BP_Ruby,mrhenry/heroku-buildpack-ruby,cordata/heroku-buildpack-ruby,ericboehs/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,HYPERHYPER/heroku-buildpack-ruby,jumptvs/BP_Ruby,DyegoCosta/heroku-buildpack-ruby,wakermahmud/heroku-buildpack-jekyll,crdschurch/heroku-buildpack-ruby,tomwolfe/heroku-buildpack-gsl-ruby,donnykurnia/heroku-buildpack-ruby,takii/heroku-buildpack-ruby,tdenovan/heroku-buildpack-ruby,icelab/heroku-buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,hixi/heroku-buildpack-ruby,qnyp/heroku-buildpack-ruby-bower,zidekmat/buildpack-ruby,ericboehs/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,sstelfox/buildpack-ruby,sky-uk/ruby-buildpack,KoanHealth/heroku-buildpack-marvin-setup,musicglue/heroku-buildpack-ruby,ibmdb/db2rubybuildpack,fcruxen/ruby-buildpack,ltrademark/heroku-buildpack-ruby,stefansundin/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,jasonlevens/heroku-buildpack-ruby,hpcloud/ruby-buildpack,diasks2/heroku-buildpack-mecab,rvizza/heroku-buildpack-gsl-ruby,dtao/teeny-buildpack,rowanoulton/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,cmaggard/heroku-buildpack-turbo-sprockets,allomov/fat-free-heroku-buildpack-ruby,packetmonkey/heroku-buildpack-ruby,CPPWind/ruby-buildpack,sky-uk/ruby-buildpack,swipesense/heroku-buildpack-ruby,Jonty/ruby-buildpack,orenyk/heroku-buildpack-ruby,dtao/teeny-buildpack,fcruxen/ruby-buildpack,shuber/heroku-buildpack-ruby,Jonty/ruby-buildpack,zoomer/heroku-buildpack-ruby-bower,space150/heroku-buildpack-ruby,ChefSteps/heroku-buildpack-ruby,dleavitt/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,guidance-guarantee-programme/heroku-buildpack-princexml-old,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,reesio/heroku-buildpack-ruby,icelab/heroku-buildpack-ruby,zidekmat/buildpack-ruby,awebneck/heroku-buildpack-canvas,ndbroadbent/heroku-buildpack-turbo-sprockets,ekaranto/rails4-bluemix-buildpack,teodor-pripoae/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,d-reinhold/cf-buildpack-ruby,qstream/heroku-buildpack-ruby,hpcloud/ruby-buildpack,codykrieger/heroku-buildpack-jekyll,gbenedict/heroku-buildpack-ruby,jumptvs/BP_Ruby,zunda/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,moneyadviceservice/heroku-buildpack-ruby-bowndler,daltonrenaldo/heroku-buildpack-ruby,engineyard/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,hellojustin/heroku-buildpack-custom-ruby,dtao/deft-buildpack-ruby,derrek/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,Git-Host/prelang-buildpack,DouglasAllen/heroku-buildpack-ruby,hpcloud/ruby-buildpack,ablease/custom-buildpack,derrek/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,Altoros/ruby-buildpack,catalyzeio/buildpack-ruby,andycroll/heroku-buildpack-jekyll,ibmdb/db2rubybuildpack,electricobjects/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,barakav/heroku-buildpack-ruby,redhotvengeance/heroku-buildpack-deep-thought,redhotvengeance/heroku-buildpack-deep-thought,stolt45/heroku-buildpack-ruby-with-sqlite3,jgable/buildpack-ruby-rack-setup-tasks,ltrademark/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,amaltson/heroku-buildpack-ruby,dlorson/gentle-buildpack,lyoshenka/heroku-buildpack-ruby-jekyll,fcruxen/ruby-buildpack,bskyb-commerce/help-heroku-buildpack,ablease/custom-buildpack,DigitalInnovation/heroku-buildpack-mslabs,catalyzeio/buildpack-ruby,trumaker/heroku-buildpack-turbo-sprockets,Altoros/ruby-buildpack,cloudfoundry/ruby-buildpack,vhx/heroku-buildpack,scottatron/moc-buildpack,hatofmonkeys/ruby-testing-buildpack,cloudn/buildpack-ruby,takii/db2rubybuildpack,jayshreeanand/heroku-buildpack-ruby,reesio/heroku-buildpack-ruby,tdenovan/heroku-buildpack-ruby,CPPWind/ruby-buildpack,scottatron/moc-buildpack,Git-Host/prelang-buildpack,ilpoldo/heroku-buildpack-ruby,packetmonkey/heroku-buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,brightbytes/heroku-buildpack-ruby-without-assets-precompile,bskyb-commerce/ruby-buildpack,beydogan/ruby-buildpack,aarongray/heroku-buildpack-ruby,ruby/heroku-buildpack-www-ruby-lang,jayshreeanand/heroku-buildpack-ruby,sstelfox/buildpack-ruby,mattwalters/heroku-buildpack-ruby,sky-uk/ruby-buildpack,HYPERHYPER/heroku-buildpack-ruby,dleavitt/heroku-buildpack-ruby,recursecenter/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,hixi/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,amaltson/heroku-buildpack-ruby,takii/db2rubybuildpack,ndbroadbent/heroku-buildpack-turbo-sprockets,righi/instacart-heroku-buildpack,cloudControl/buildpack-ruby,DigitalInnovation/heroku-buildpack-mslabs,jonasoberschweiber/heroku-buildpack-ruby,jgable/buildpack-ruby-rack-setup-tasks,samfrench/heroku-buildpack-ruby,andycroll/heroku-buildpack-jekyll,tpope/heroku-buildpack-ruby-tpope,gls1/heroku-buildpack-ruby-pdftk-new,schu/buildpack-testing,fgbreel/heroku-buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,heroku/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,stefansundin/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,jasonlevens/heroku-buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,blueapron/heroku-buildpack-ruby,daltonrenaldo/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,mintybit/heroku-buildpack-ruby,engineyard/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,ilpoldo/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,ibmdb/db2rubybuildpack,d-reinhold/cf-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,diasks2/heroku-buildpack-mecab,KoanHealth/heroku-buildpack-marvin-setup,righi/instacart-heroku-buildpack,ChefSteps/heroku-buildpack-ruby,Scalingo/ruby-buildpack,allomov/fat-free-heroku-buildpack-ruby,qstream/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,bskyb-commerce/ruby-buildpack,gls1/heroku-buildpack-ruby-pdftk-new,iamjarvo/ruby-buildpack,pkgr/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,fgbreel/heroku-buildpack-ruby,takii/heroku-buildpack-ruby,sky-uk/help-heroku-buildpack,ablease/custom-buildpack,cloudn/buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,cloudfoundry/ruby-buildpack,space150/heroku-buildpack-ruby,takii/db2rubybuildpack,bwaite-jaroop/heroku-buildpack-ruby,Jonty/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,dlorson/gentle-buildpack,DouglasAllen/heroku-buildpack-ruby,bwaite-jaroop/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,Jonty/ruby-buildpack,cloudn/buildpack-ruby,orlando/heroku-buildpack-ruby,gbenedict/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,zoomer/heroku-buildpack-ruby-bower,musicglue/heroku-buildpack-ruby,pilotcreative/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,simonnordberg/heroku-buildpack-ruby,guidance-guarantee-programme/heroku-buildpack-princexml-old,makifund/heroku-buildpack-ruby,CPPWind/ruby-buildpack,Altoros/ruby-buildpack,recursecenter/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,bellycard/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk,aarongray/heroku-buildpack-ruby,hellojustin/heroku-buildpack-custom-ruby,swipesense/heroku-buildpack-ruby,fcruxen/ruby-buildpack,anay/buildpack-ruby-with-oracle-jdk,gls1/heroku-buildpack-ruby-pdftk,teodor-pripoae/heroku-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,tomwolfe/heroku-buildpack-gsl-ruby,simonnordberg/heroku-buildpack-ruby,awebneck/heroku-buildpack-canvas,stolt45/heroku-buildpack-ruby-with-sqlite3,ericroberts/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,pietrop/heroku-buildpack-ruby,trumaker/heroku-buildpack-turbo-sprockets,tpope/heroku-buildpack-ruby-tpope,cloudControl/buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,beydogan/ruby-buildpack,CPPWind/ruby-buildpack,bellycard/heroku-buildpack-ruby,mrhenry/heroku-buildpack-ruby,mattwalters/heroku-buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,schu/buildpack-testing,barakav/heroku-buildpack-ruby,leonardykris/mos-ruby-buildpack,rowanoulton/heroku-buildpack-ruby,qnyp/heroku-buildpack-ruby-bower,wakermahmud/heroku-buildpack-jekyll,cordata/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,michaelphines/alexa-nest,sky-uk/ruby-buildpack,schu/heroku-buildpack-ruby,ablease/custom-buildpack,orlando/heroku-buildpack-ruby,michaelphines/alexa-nest,pilotcreative/heroku-buildpack-ruby,vhx/heroku-buildpack,donnykurnia/heroku-buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,jonseaberg/heroku-buildpack-turbo-sprockets,schu/heroku-buildpack-ruby,lyoshenka/heroku-buildpack-ruby-jekyll