Some editorial cleanup on caching guide
Some editorial cleanup on caching guide

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ay/rails,flanger001/rails,elfassy/rails,rossta/rails,MichaelSp/rails,kachick/rails,bradleypriest/rails,mtsmfm/rails,richseviora/rails,brchristian/rails,rafaelfranca/omg-rails,BlakeWilliams/rails,Edouard-chin/rails,stefanmb/rails,illacceptanything/illacceptanything,marklocklear/rails,starknx/rails,Sen-Zhang/rails,starknx/rails,yalab/rails,kddeisz/rails,MSP-Greg/rails,kamipo/rails,georgeclaghorn/rails,palkan/rails,illacceptanything/illacceptanything,kenta-s/rails,vassilevsky/rails,kmayer/rails,illacceptanything/illacceptanything,mtsmfm/railstest,mtsmfm/rails,repinel/rails,yhirano55/rails,mijoharas/rails,flanger001/rails,felipecvo/rails,joonyou/rails,iainbeeston/rails,baerjam/rails,yalab/rails,utilum/rails,lcreid/rails,EmmaB/rails-1,kaspth/rails,Sen-Zhang/rails,notapatch/rails,tjschuck/rails,odedniv/rails,kenta-s/rails,stefanmb/rails,rails/rails,notapatch/rails,Edouard-chin/rails,gavingmiller/rails,lcreid/rails,alecspopa/rails,travisofthenorth/rails,arunagw/rails,printercu/rails,sealocal/rails,illacceptanything/illacceptanything,yalab/rails,samphilipd/rails,illacceptanything/illacceptanything,lcreid/rails,iainbeeston/rails,Vasfed/rails,georgeclaghorn/rails,kddeisz/rails,maicher/rails,elfassy/rails,flanger001/rails