Update requirements.txt comment spacing (#8562)

requirements.txt

@@ -10,7 +10,7 @@ PyYAML>=5.3.1
 requests>=2.23.0
 scipy>=1.4.1  # Google Colab version
 torch>=1.7.0,!=1.12.0  # https://github.com/ultralytics/yolov5/issues/8395
-torchvision>=0.8.1,!=0.13.0 # https://github.com/ultralytics/yolov5/issues/8395
+torchvision>=0.8.1,!=0.13.0  # https://github.com/ultralytics/yolov5/issues/8395
 tqdm>=4.41.0
 protobuf<4.21.3  # https://github.com/ultralytics/yolov5/issues/8012
 
@@ -26,8 +26,8 @@ seaborn>=0.11.0
 # coremltools>=4.1  # CoreML export
 # onnx>=1.9.0  # ONNX export
 # onnx-simplifier>=0.3.6  # ONNX simplifier
-# nvidia-pyindex # TensorRT export
-# nvidia-tensorrt # TensorRT export
+# nvidia-pyindex  # TensorRT export
+# nvidia-tensorrt  # TensorRT export
 # scikit-learn==0.19.2  # CoreML quantization
 # tensorflow>=2.4.1  # TFLite export
 # tensorflowjs>=3.9.0  # TF.js export