Add Architecture Summary to README Tutorials (#7146)

* Add Architecture Summary to README Tutorials

Per https://github.com/ultralytics/yolov5/issues/6998#issuecomment-1073517405

* Update README.md

README.md

@@ -162,7 +162,7 @@ python train.py --data coco.yaml --cfg yolov5n.yaml --weights '' --batch-size 12
 * [Model Pruning/Sparsity](https://github.com/ultralytics/yolov5/issues/304)
 * [Hyperparameter Evolution](https://github.com/ultralytics/yolov5/issues/607)
 * [Transfer Learning with Frozen Layers](https://github.com/ultralytics/yolov5/issues/1314)  ⭐ NEW
-* [TensorRT Deployment](https://github.com/wang-xinyu/tensorrtx)
+* [Architecture Summary](https://github.com/ultralytics/yolov5/issues/6998)  ⭐ NEW
 
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