FPGA: Add extra comment to spot_finder

fpga/hls/spot_finder.cpp

@@ -45,6 +45,8 @@ void spot_finder(STREAM_512 &data_in,
             strong_pixel_count += count_pixels(strong_pixel);
             data_in >> packet;
         }
+
+        // Save module statistics
         strong_pixel_out << ap_axiu<32,1,1,1>{.data = count_threshold, .user = 0};
         strong_pixel_out << ap_axiu<32,1,1,1>{.data = snr_threshold, .user = 0};
         strong_pixel_out << ap_axiu<32,1,1,1>{.data = strong_pixel_count, .user = 0};