fix documentation of variable interpolation into templates
fix documentation of variable interpolation into templates

Rayheng/sinatra,ksw2599/sinatra,davydovanton/sinatra,burningTyger/sinatra,lastcat/sinatra,nju520/sinatra,Callygraphy/morrissey,blambeau/sinatra,lastcat/sinatra,jkowens/sinatra,ABaldwinHunter/sinatra-classic,Wirachmat/sinatra,midorineko/sinatra,JonRowe/sinatra,laplaceliu/sinatra,twanies/sinatra,jkowens/sinatra,kyontan/sinatra,dariubs/sinatra,ganmacs/sinatra,wzheng1/sinatra,trexnix/sinatra,kumji/sinatra,d-bot/sinatra,porras/sinatra,eileencodes/sinatra,kgrz/sinatra,eileencodes/sinatra,guidohcosta/sinatra,defsprite/sinatra,kumji/sinatra,jenalgit/sinatra,sinatra/sinatra,Wirachmat/sinatra,nicoayala/sinatra,twanies/sinatra,nicoayala/sinatra,jkowens/sinatra,porras/sinatra,DoraALin/sinatra,ktw1222/sinatra,guidohcosta/sinatra,ABaldwinHunter/sinatra-classic,siberianbear/sinatra,RosenDimov/sinatra,ksw2599/sinatra,ganmacs/sinatra,burningTyger/sinatra,siberianbear/sinatra,miyazawatomoka/sinatra,d-bot/sinatra,ryanshaw/sinatra,emiliocorpus/sinatra,howtolearntocode/sinatra,midorineko/sinatra,jenalgit/sinatra,bmizerany/sinatra,burningTyger/sinatra,QLGu/sinatra,davydovanton/sinatra,defsprite/sinatra,cyberid41/sinatra,JonMidhir/sinatra,mwpastore/sinatra,autopp/sinatra,QLGu/sinatra,gferguson-gd/sinatra,DoraALin/sinatra,marocchino/sinatra,emiliocorpus/sinatra,JonMidhir/sinatra,sethuster/sinatra,cyberid41/sinatra,ryanshaw/sinatra,frechei/sinatra,laplaceliu/sinatra,wzheng1/sinatra,kyontan/sinatra,miyazawatomoka/sinatra,mwpastore/sinatra,gferguson-gd/sinatra,dariubs/sinatra,autopp/sinatra,trexnix/sinatra,sethuster/sinatra,nju520/sinatra,Rayheng/sinatra,nottombrown/old-sinatra,nottombrown/old-sinatra,sinatra/sinatra,mwpastore/sinatra,JonRowe/sinatra,RosenDimov/sinatra,JonMidhir/sinatra,frechei/sinatra,howtolearntocode/sinatra,ktw1222/sinatra