clarify CVM auth capabilities (coder#578)

ericpaulsen · web-flow · commit 71be8a627d97 · 2021-09-03T14:45:55.000-05:00
diff --git a/admin/workspace-management/cvms.md b/admin/workspace-management/cvms.md
@@ -141,8 +141,8 @@ container is what provides
 
 ## Images hosted in private registries
 
-Please note that CVM-enabled workspaces cannot be created using images hosted in
-a private registry unless you permit unauthenticated access to the images.
+Please note that _non-cached_ CVM workspaces cannot be created using images hosted
+in a private registry unless you permit unauthenticated access to the images.
 
 ## Image configuration
 
