Documentation Link

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Problem

We have a bunch of special terms and concepts that we use throughout the docs, e.g. "data coordinates", "view limits" etc. We currently do not have dedicated places in which such concepts are documented and that we could link to.

I'd like to have the ability to link such places in the docs. Currently, if we do such linking, the way is case-by-case, e.g. for view limits, I could reference.Axes.viewLim (which currently does not explain the machninery around it) or for "data coordinates":ref:`data coordinates <coordinate-systems>`.

Suggested improvement

We have rightfully removed the glossary in#18696, because it did not carry useful information.

I now propose to reintroduce a gloassary specifically designed around the Matplotlib concepts and terminology. This will make linking simple, e.g:term:`data coordinates`.

The glossary entries should have only very brief descriptions of the term (1-5 sentences) and link out to more in-depth documentation (tutorials, API, etc.) if needed.