Galleria - Directive category

The galleria directive

A "galleria" consists of list of image file names, one per line, followed by a list of options, one per line, and then an optional caption paragraph. There must be blank lines before the caption and target paragraph. Here is an example, corresponding to the illustration of the introduction section:

.. galleria::
  tiryns.jpg
      :caption:  Mycenaean Watercolor, from a fresco in `Tiryns`_
      :target:   https://en.wikipedia.org/wiki/Tiryns
  boxers.jpg
      :caption:  Watercolor, also a fresco from `Akrotiri`_
      :target:   `Akrotiri`_
  swallows.jpg
      :caption:  Watercolor, from a fresco from `Akrotiri`_
  caryatid.jpg
      :caption:  Watercolor, the `Caryatid`_ porch …