GitLab

* note on naming restrictions

else push would fail with cryptic
retrieving manifest 
Error: file does not exist
==> maybe change that in code too

* Update docs/import.md

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Co-authored-by: C-4-5-3 <154636388+C-4-5-3@users.noreply.github.com>
Co-authored-by: Jeffrey Morgan <jmorganca@gmail.com>