tour: Inappropriate detail regarding go tour

[ghost]

Context: https://tour.golang.org/welcome/3

version: go version go1.8.1 linux/amd64
OS: Manjaro(based on : Arch-Linux)
What did I do?
go tool tour
What did I expect to see?
A tab in my browser, featuring go tour
What did I see instead?
go tool: no such tool "tour"

While I have installed go using my package manager, I'm ain't sure whether this problem is unique to me or it is global.
I think tour isn't installed by default with go installation,
then it would be better to have this command in-place of go tool tour
go get golang.org/x/tour/gotour
and then let users type gotour when ever needed,

even if tour is installed,
usually many repositories in Linux world, don't update their repositories frequently with software,
so somebody may have an older version of go tour installed

Thank you.

[robphoenix]

This issue is a duplicate of #8
@Looserof7 would you mind closing this if you feel your issue is covered there, thanks!