x/website: Incorrect method referred to in the description in the "Return greetings for multiple people" tutorial page

[Jebbee]

What version of Go are you using (go version)?

$ go version
go version go1.15.1 darwin/amd64

Does this issue reproduce with the latest release?

This is not a go issue, but rather a typo in the tutorial at https://golang.org/doc/tutorial/greetings-multiple-people

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
Not relevant

What did you do?

Followed along in the tutorial at https://golang.org/doc/tutorial/greetings-multiple-people

What did you expect to see?

The tutorial says: "Pass the names variable as the argument to the Hello function."

What did you see instead?

The tutorial should say: "Pass the names variable as the argument to the Hellos function."

[gopherbot]

Change https://golang.org/cl/253338 mentions this issue: content/static/doc: fix typo for tutorial page