Broken link for firecracker binaries in getting started

[mziyabo]

Small update required for:
Link for the firecracker binary in Getting Started under Getting the binary section - link leaves out the binary's architecture

• Download will work fine but a Command Not Found exception occurs when you later try to run the binary

Suggest a note perhaps OR including the architecture in the link, e.g.:
curl -LOJ https://github.com/firecracker-microvm/firecracker/releases/download/${latest}/firecracker-${latest}-$(uname -m)

[dianpopa]

Hi @mziyabo ,

Indeed, the link to the binary is outdated. Including the architecture in the link, just like you suggested, solves the not found issue.
Would you mind posting a PR with this?