Minor: I wish `wush` was easier to install with Go

[ilyagr]

Currently, I get

$ go install github.com/coder/wush@latest
go: downloading github.com/coder/wush v0.3.0
go: github.com/coder/wush@latest: module github.com/coder/wush@latest found (v0.3.0), but does not contain package github.com/coder/wush

The best way I have found to substitute for this is a bit awkward:

git clone https://github.com/coder/wush@latest
cd wush/cmd/wush
go install .

I'm not familiar enough with Go packages to know whether there's a better way of whether this is easy or impossible to fix.

[coadler]

The proper way would be

$ go install github.com/coder/wush/cmd/wush@latest

But I unfortunately needed to fork Tailscale, so that doesn't work at the moment.