Add a date to each notebook

[emiliom]

The new JupyterBook-based IOOS Code Lab looks great!

But one thing that I suggest should be added to each notebook (which was present in the previous IOOS Code Gallery, I think) is a date, making it clear to users when the notebook was developed. That's a useful piece of information to help decide if the code used in the notebook might be old and the packages used may have newer, better features.

Currently, a sharp user will notice that the date is in the notebook file name, in the url. But it'd be better to make that information less subtle. It could go right below the title or at the end next to the Author line.

[MathewBiddle]

This goes back to the template idea we discussed previously.

• Create a notebook template for potential contributors notebooks_demos#426

Per that discussion a template isn't what we need, but maybe we should include some simple recommended pieces to include in a notebook?

Probably sticking something here would be good: https://github.com/ioos/ioos_code_lab/blob/main/CONTRIBUTING.md#building-new-notebooks

[MathewBiddle]

@ocefpaf we could probably write a simple script to extract the date from the name of the notebook and insert it as a markdown cell. Just wondering if that's the right approach?

Would it be easier/more efficient to do it by hand? There are 34 notebooks to update as of now...

[ocefpaf]

@ocefpaf we could probably write a simple script to extract the date from the name of the notebook and insert it as a markdown cell. Just wondering if that's the right approach?

Would it be easier/more efficient to do it by hand? There are 34 notebooks to update as of now...

Rewriting a cell into an existing notebook is not too hard but I never got it to behave as I would like. Usually it generates more changes than it is desirable. Also, we don't want to re-run those notebooks.

TL;DR maybe we can just bite the bullet and add those manually.