Create reserved_metadata_tags.ipynb

[psychemedia]

Some metadata tags are conventionally defined and may be used to modify the presentation of cells or add meaningful cell "tags".

As such, in some circumstances such metadata may be considered as notebook content that should be persisted rather than being summarily deleted from cell metadata when a notebook is cleaned.

[codecov[bot]]

Codecov Report

Merging #141 (21755a0) into main (ee98774) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #141   +/-   ##
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  Coverage   97.95%   97.95%           
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  Files           3        3           
  Lines         147      147           
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  Hits          144      144           
  Misses          3        3           

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[srstevenson]

@psychemedia Shall we close this as superseded by #159?

[github-actions[bot]]

This PR was closed due to inactivity. Please reopen if still relevant.