Update dnn_mmod_find_cars2_ex.cpp (#966)

examples/dnn_mmod_find_cars2_ex.cpp

@@ -27,7 +27,7 @@ using namespace dlib;
 
 
 
-// The rear view vehicle detector network
+// The front and rear view vehicle detector network
 template <long num_filters, typename SUBNET> using con5d = con<num_filters,5,5,2,2,SUBNET>;
 template <long num_filters, typename SUBNET> using con5  = con<num_filters,5,5,1,1,SUBNET>;
 template <typename SUBNET> using downsampler  = relu<affine<con5d<32, relu<affine<con5d<32, relu<affine<con5d<16,SUBNET>>>>>>>>>;