Updates Gitlab runner documentation
This branch modifies the documentation around Gitlab runners. With the new prefixed publisher runners, we're now able to make runners namespaced to each team that wants to use this feature.
Users are not receiving the expected GitLab notification emails. To track progress and resolution of this issue, see: https://outages.doit.wisc.edu/outage/94c28174712f580e52ae1542799e6f0ac541d75a08
This branch modifies the documentation around Gitlab runners. With the new prefixed publisher runners, we're now able to make runners namespaced to each team that wants to use this feature.