Use C syntax highlight in Quick Start guide
Use C syntax highlight in Quick Start guide

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@iki.fi>

libtrading/libtrading,divaykin/libtrading,svdev/libtrading,NunoEdgarGub1/libtrading,penberg/libtrading,NunoEdgarGub1/libtrading,svdev/libtrading,libtrading/libtrading,Bitcoinsulting/libtrading,etoestja/libtrading,femtotrader/libtrading,jvirtanen/libtrading,fengzhyuan/libtrading,divaykin/libtrading,etoestja/libtrading,Bitcoinsulting/libtrading,femtotrader/libtrading,penberg/libtrading,mstanichenko/libtrading,fengzhyuan/libtrading,mstanichenko/libtrading,jvirtanen/libtrading