Add arm64 Docker image.

[nicktheone]

Since you're offering so many different binaries have you thought about offering an arm64 Docker image?

[get-got]

I've looked around a bit but I'm not sure how to serve multiple architectures on Docker. I'll keep it in mind and look around more.

There's so many os/architecture combos offered because Go is inherently cross-platform so I can just build all of the variants with 1 command.

[nicktheone]

You typically do that with Docker tags.