W3A2 UNet Assignment Suggestion

First of all, kudo for this fun and educative assignment and I really enjoy it.

Just small feedback on the assignment content - in one of the UNet architecture diagram, I was confused about the dimension number beside the arrow

After some time, I realized it was the size of the image. I found it confusing because, in the lecture video, a different convention was used - that the number represents the kernel size. I think it would be more clear if the diagram was labeled as

Just my 2 cents.

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Thank you for your feedback. And happy to know you are enjoying the assignment.