Broken link on Project's members documentation site

Summary

In the Project's members documentation page in the section "Add a user" the link "permission level" is broken (redirects to 404 page).

Select the user and the permission level that you'd like to give the user. Note that you can select more than one user.
                        ^^^^^^^^^^^^^^^^ => broken link

Version of GitLab: GitLab Enterprise Edition 10.1.2-ee

Steps to reproduce

Go to Project's members documentation site and in the section "Add a user" click the link "permission level".

What is the current bug behavior?

Redirects to 404 page.

What is the expected correct behavior?

Open the permissions documentation page.

Output of checks

This bug happens on GitLab.com

Possible fixes

Change link from https://docs.gitlab.com/ee/user/user/permissions.html to https://docs.gitlab.com/ee/user/permissions.html.

/label ~bug