doc: fix path to make.bash
doc: fix path to make.bash

Change-Id: I78c7197b8b93590470a782b492bba177a14d80ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/226340
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

cloudflare/go,cloudflare/go,cloudflare/go,cloudflare/go,CAFxX/go,akutz/go,nawawi/go,CAFxX/go,akutz/go,golang/go,cloudflare/go,akutz/go,akutz/go,CAFxX/go,akutz/go,CAFxX/go,CAFxX/go,golang/go,cloudflare/go,golang/go,golang/go,nawawi/go,nawawi/go,golang/go,golang/go,cloudflare/go,akutz/go,golang/go,nawawi/go,CAFxX/go,nawawi/go,CAFxX/go,nawawi/go,akutz/go,akutz/go,cloudflare/go,nawawi/go,nawawi/go,CAFxX/go,golang/go