improve the examle vcc file
improve the examle vcc file

aondio/libvmod-rtfrontend,aondio/libvmod-cowsay,mbgrydeland/libvmod-fsbackend,Dridi/libvmod-example,mbgrydeland/libvmod-fsbackend,Dridi/libvmod-example,varnish/libvmod-example,varnish/libvmod-example,aondio/libvmod-cowsay,aondio/libvmod-rtfrontend,aondio/libvmod-rtfrontend