Remove Duplicated information & fix typo...
Remove Duplicated information & fix typo...

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