Add tip for running binstubs on Windows [ci skip]
Add tip for running binstubs on Windows [ci skip]

The default command prompt under Windows doesn't run binstubs correctly
while PowerShell needs to find the location of the Ruby interpreter for
it to work properly. Passing the binstubs manually to the interpreter
solves this problem.

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