Computing-Infrastructure-and-Support.md

@@ -5,6 +5,7 @@ This is where general computing infrastructure and support topics should be link
 Public (no security) issues should be addressed in the [issues](https://research-git.uiowa.edu/space-physics/doc/-/issues) area of the public documents,
 but sensitive (system or project security) issues should be addressed in the wikis and
 associated issues areas of the repositories linked from the above subgroup.
+Note that the restricted topics will require explicit invitations to access.  (You know who @ljg to ask.)
 
 ## [Das Developers](https://github.com/das-developers)