Deplying ResNet50 on Triton

[Nanthini10]

I was following the setup instructions from here and I noticed that the Inference Server was not being setup. It looks like in this line, it should use --model-repository instead of --model-store and that fixed the setup for me.

The example uses Triton 21.02, it would good to update this with a more recent version of Triton. Thank you!