Docs: How to apply tags section for different notebook interfaces

[MSeal]

We get questions about how to assign the parameters tag to cells in different notebook interfaces. A quick description (maybe with pics/gifs) of how to edit cell tags for common UIs would be helpful to users.

Likely we'd want this in both readthedocs as well.

[betatim]

👍 for docs on how to do this in JupyterLab.

For classic jupyter notebook:

[michaelnt]

For jupyterlab you can install the celltags extension or edit the cell metadata

{ "tags": [ "parameters" ] }