Update group-work.md

Co-authored-by: Richard Darst <rkd@zgib.net>

Author: bast

group-work.md

@@ -45,6 +45,7 @@ Should I add everybody as collaborator?
 
 - GitHub: probably better integrations (with services like Zenodo), probably more visibility (more users).
 - GitLab: more features, you can also self-host, more advanced continuous integration.
+- Your own university's GitLab: most control, local support, but limited visibility and you might lose access when you move on.
 
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