Add documentation for automaxprocs

[schwarzit]

Add documentation for automaxprocs

[brumhard]

The _template's main.go currently contains the following:

// This controls the maxprocs environment variable in container runtimes.
// see https://martin.baillie.id/wrote/gotchas-in-the-go-network-packages-defaults/#bonus-gomaxprocs-containers-and-the-cfs
_ "go.uber.org/automaxprocs"

Do you think we need more than that?

[linuxluigi]

Definitely, we just discussed it in our team. And when we not really understand what happened here, more people won't understand it if it better to keep it or delete it.

[linuxluigi]

I changed my mind, since this issue is so long open and nobody is interested in it. We could close it.