fix quick start yaml

configs/quick_start/ResNet50_vd_finetune.yaml

@@ -2,6 +2,7 @@ mode: 'train'
 ARCHITECTURE:
     name: 'ResNet50_vd'
 pretrained_model: "./pretrained/ResNet50_vd_pretrained"
+load_static_weights: true
 model_save_dir: "./output/"
 classes_num: 102
 total_images: 1020