Merge branch 'docs/add-caution-to-gitlab-university' into 'master'

Note GitLab University may be out of date in parts

See merge request gitlab-org/gitlab-ce!31034

doc/university/README.md

@@ -9,6 +9,10 @@ GitLab University is a great place to start when learning about version control
 
 If you're looking for a GitLab subscription for _your university_, see our [Education](https://about.gitlab.com/solutions/education/) page.
 
+CAUTION: **Caution:**
+Some of the content in GitLab University may be out of date and we plan to
+[evaluate](https://gitlab.com/gitlab-org/gitlab-ce/issues/41064) it.
+
 The GitLab University curriculum is composed of GitLab videos, screencasts, presentations, projects and external GitLab content hosted on other services and has been organized into the following sections:
 
 1. [GitLab Beginner](#1-gitlab-beginner).