I don't think this is quite the same thing. It's nice that godoc autogenerates documentation on the functions + types each module in the stdlib provides (like here: https://pkg.go.dev/compress/[email protected]) but it doesn't look like it goes any further. In LP you'd get explanation of the implementation details interspersed with little chunks of code, it wouldn't necessarily be in the same order as the final file would be (just the order it makes sense to see it in).

It might be worth checking through the PDF the sister comment to yours linked - http://literateprogramming.com/knuthweb.pdf - you'll see what I mean.