Add ActionController#head example
Add ActionController#head example

palkan/rails,alecspopa/rails,prathamesh-sonpatki/rails,Sen-Zhang/rails,baerjam/rails,sergey-alekseev/rails,kirs/rails-1,yasslab/railsguides.jp,EmmaB/rails-1,kachick/rails,kddeisz/rails,amoody2108/TechForJustice,MSP-Greg/rails,fabianoleittes/rails,kmayer/rails,lucasmazza/rails,arunagw/rails,gavingmiller/rails,gavingmiller/rails,mohitnatoo/rails,mathieujobin/reduced-rails-for-travis,illacceptanything/illacceptanything,betesh/rails,flanger001/rails,mechanicles/rails,bogdanvlviv/rails,aditya-kapoor/rails,mathieujobin/reduced-rails-for-travis,notapatch/rails,travisofthenorth/rails,printercu/rails,MichaelSp/rails,xlymian/rails,kaspth/rails,brchristian/rails,tgxworld/rails,tijwelch/rails,yasslab/railsguides.jp,vassilevsky/rails,pvalena/rails,baerjam/rails,repinel/rails,yahonda/rails,ngpestelos/rails,baerjam/rails,shioyama/rails,fabianoleittes/rails,riseshia/railsguides.kr,illacceptanything/illacceptanything,fabianoleittes/rails,yhirano55/rails,untidy-hair/rails,sealocal/rails,odedniv/rails,elfassy/rails,voray/rails,ttanimichi/rails,yahonda/rails,printercu/rails,esparta/rails,pschambacher/rails,joonyou/rails,arunagw/rails,vipulnsward/rails,travisofthenorth/rails,ngpestelos/rails,BlakeWilliams/rails,Sen-Zhang/rails,rafaelfranca/omg-rails,printercu/rails,utilum/rails,hanystudy/rails,coreyward/rails,sergey-alekseev/rails,eileencodes/rails,kaspth/rails,odedniv/rails,fabianoleittes/rails,tjschuck/rails,kamipo/rails,MichaelSp/rails,lcreid/rails,utilum/rails,odedniv/rails,bolek/rails,ledestin/rails,illacceptanything/illacceptanything,repinel/rails,samphilipd/rails,ngpestelos/rails,mathieujobin/reduced-rails-for-travis,gcourtemanche/rails,eileencodes/rails,jeremy/rails,Envek/rails,untidy-hair/rails,stefanmb/rails,sergey-alekseev/rails,palkan/rails,pschambacher/rails,Edouard-chin/rails,coreyward/rails,iainbeeston/rails,felipecvo/rails,voray/rails,mechanicles/rails,Edouard-chin/rails,88rabbit/newRails,richseviora/rails,illacceptanything/illacceptanything,MichaelSp/rails,aditya-kapoor/rails,assain/rails,lcreid/rails,sealocal/rails,tjschuck/rails,illacceptanything/illacceptanything,gauravtiwari/rails,amoody2108/TechForJustice,bolek/rails,baerjam/rails,mtsmfm/railstest,elfassy/rails,koic/rails,deraru/rails,kddeisz/rails,mechanicles/rails,kmcphillips/rails,88rabbit/newRails,iainbeeston/rails,rbhitchcock/rails,palkan/rails,felipecvo/rails,betesh/rails,felipecvo/rails,illacceptanything/illacceptanything,kmayer/rails,bradleypriest/rails,arjes/rails,yasslab/railsguides.jp,Erol/rails,rafaelfranca/omg-rails,Erol/rails,betesh/rails,marklocklear/rails,mtsmfm/railstest,iainbeeston/rails,georgeclaghorn/rails,maicher/rails,Vasfed/rails,rossta/rails,vassilevsky/rails,matrinox/rails,schuetzm/rails,kmcphillips/rails,untidy-hair/rails,rails/rails,samphilipd/rails,Vasfed/rails,coreyward/rails,mohitnatoo/rails,jeremy/rails,rossta/rails,Spin42/rails,esparta/rails,tijwelch/rails,aditya-kapoor/rails,repinel/rails,Stellenticket/rails,pvalena/rails,mtsmfm/railstest,tgxworld/rails,assain/rails,kddeisz/rails,bolek/rails,kirs/rails-1,MSP-Greg/rails,yalab/rails,kamipo/rails,flanger001/rails,tjschuck/rails,illacceptanything/illacceptanything,lcreid/rails,yalab/rails,kenta-s/rails,kirs/rails-1,Spin42/rails,travisofthenorth/rails,notapatch/rails,marklocklear/rails,yasslab/railsguides.jp,kaspth/rails,georgeclaghorn/rails,gavingmiller/rails,BlakeWilliams/rails,notapatch/rails,ledestin/rails,assain/rails,kmayer/rails,vipulnsward/rails,maicher/rails,riseshia/railsguides.kr,illacceptanything/illacceptanything,kachick/rails,Sen-Zhang/rails,illacceptanything/illacceptanything,bogdanvlviv/rails,illacceptanything/illacceptanything,Stellenticket/rails,Edouard-chin/rails,BlakeWilliams/rails,Edouard-chin/rails,Envek/rails,Spin42/rails,alecspopa/rails,yalab/rails,joonyou/rails,esparta/rails,Erol/rails,pvalena/rails,shioyama/rails,gfvcastro/rails,starknx/rails,jeremy/rails,vassilevsky/rails,koic/rails,kenta-s/rails,gfvcastro/rails,pschambacher/rails,utilum/rails,samphilipd/rails,Stellenticket/rails,voray/rails,sealocal/rails,illacceptanything/illacceptanything,yalab/rails,arjes/rails,travisofthenorth/rails,mtsmfm/rails,ledestin/rails,mtsmfm/rails,eileencodes/rails,tgxworld/rails,amoody2108/TechForJustice,shioyama/rails,bogdanvlviv/rails,esparta/rails,Envek/rails,deraru/rails,hanystudy/rails,printercu/rails,yawboakye/rails,richseviora/rails,utilum/rails,illacceptanything/illacceptanything,lcreid/rails,hanystudy/rails,Vasfed/rails,betesh/rails,gfvcastro/rails,mechanicles/rails,stefanmb/rails,yawboakye/rails,palkan/rails,yhirano55/rails,bradleypriest/rails,prathamesh-sonpatki/rails,brchristian/rails,arjes/rails,rails/rails,untidy-hair/rails,illacceptanything/illacceptanything,gfvcastro/rails,jeremy/rails,xlymian/rails,marklocklear/rails,MSP-Greg/rails,flanger001/rails,maicher/rails,mohitnatoo/rails,tijwelch/rails,yhirano55/rails,assain/rails,prathamesh-sonpatki/rails,gauravtiwari/rails,rbhitchcock/rails,88rabbit/newRails,yhirano55/rails,matrinox/rails,yawboakye/rails,joonyou/rails,schuetzm/rails,arunagw/rails,bogdanvlviv/rails,tjschuck/rails,riseshia/railsguides.kr,illacceptanything/illacceptanything,ttanimichi/rails,kenta-s/rails,georgeclaghorn/rails,deraru/rails,yahonda/rails,pvalena/rails,joonyou/rails,Envek/rails,mohitnatoo/rails,riseshia/railsguides.kr,elfassy/rails,rossta/rails,kamipo/rails,rails/rails,EmmaB/rails-1,kddeisz/rails,notapatch/rails,lucasmazza/rails,mtsmfm/rails,georgeclaghorn/rails,alecspopa/rails,koic/rails,shioyama/rails,matrinox/rails,Stellenticket/rails,schuetzm/rails,brchristian/rails,EmmaB/rails-1,eileencodes/rails,tgxworld/rails,yahonda/rails,gcourtemanche/rails,rails/rails,kachick/rails,repinel/rails,MSP-Greg/rails,richseviora/rails,starknx/rails,flanger001/rails,aditya-kapoor/rails,arunagw/rails,ttanimichi/rails,gauravtiwari/rails,xlymian/rails,deraru/rails,illacceptanything/illacceptanything,yawboakye/rails,schuetzm/rails,rbhitchcock/rails,gcourtemanche/rails,bradleypriest/rails,lucasmazza/rails,Vasfed/rails,vipulnsward/rails,kmcphillips/rails,BlakeWilliams/rails,kmcphillips/rails,prathamesh-sonpatki/rails,mijoharas/rails,Erol/rails,vipulnsward/rails,mijoharas/rails,starknx/rails,rafaelfranca/omg-rails,stefanmb/rails,iainbeeston/rails,mijoharas/rails