Update `README.md` to specify `--platform linux/amd64` for building image#2

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tcaddy wants to merge 2 commits intoOpenSidewalks:mainfrom

Commits on Dec 29, 2023

Update `README.md` to specify `--platform linux/amd64` for building the image
tcaddy
committed
Hacky workaround to deal with `numpy` version issues
tcaddy
committed