Update requirements.txt

requirements.txt

@@ -16,6 +16,8 @@ thop>=0.1.1  # FLOPs computation
 torch>=1.7.0  # see https://pytorch.org/get-started/locally (recommended)
 torchvision>=0.8.1
 tqdm>=4.64.0
+transformers
+
 # protobuf<=3.20.1  # https://github.com/ultralytics/yolov5/issues/8012
 
 # Logging ---------------------------------------------------------------------