README formatting (indentation), organizational, and TOC cleanup
README formatting (indentation), organizational, and TOC cleanup

ctembreull/grape,nikolai-b/grape,yonglehou/grape,ferdinandrosario/grape,suan/grape,fangzhu19880123/grape,tylerdooling/grape,peterwillcn/grape,reynardmh/grape,franzliedke/grape,rubyinhell/grape,virajs/grape,cutalion/grape,rnubel/grape,hobofan/grape,intridea/grape,dslh/grape,krufyliu/grape,gencer/grape,jlfaber/grape,ryancheung/grape,namusyaka/grape,cyberid41/grape,xurde/grape,jrforrest/grape,niedhui/grape,QuickPay/grape,whouses/grape,hnq90/grape,dblock/grape,oliveiradev/grape,ruby-grape/grape,shunyam/grape,pvijayror/grape,marshall-lee/grape,thogg4/grape,Ivanknmk/grape,samotarnik/grape,jtmarmon/grape,klaustopher/grape